Getting ready for CSAT can feel challenging, especially when it comes to quantitative aptitude topics like percentages. That’s why this comprehensive guide on CSAT Percentage MCQs 2026 is designed to help you master one of the most important and scoring areas of the UPSC Prelims Paper 2.
In this post, you will find 100 carefully selected percentage MCQs divided into 10 structured sections, covering all important patterns such as increase-decrease, profit-loss, mixture, data interpretation, and advanced applications. These CSAT Percentage MCQs 2026 are designed to match the real exam level and help you build both accuracy and speed.
Whether you are a beginner or an advanced aspirant, practicing these CSAT Percentage MCQs 2026 will significantly improve your confidence and performance in the exam.
Practicing these CSAT Percentage MCQs 2026 regularly will help you build strong conceptual clarity and improve your problem-solving speed.
If you are starting your CSAT preparation, make sure you first understand the basics through our detailed CSAT 2026 Strategy guide, which explains how to approach Paper 2 effectively along with time management techniques.
🔥CSAT Percentage MCQs 2026: Reverse Percentage(Q1–10)
Q1. 40% of a number is 120. The number is:
A. 240
B. 260
C. 300
D. 320
👉 Answer: C
Q2. 25% of a number is 50. The number is:
A. 150
B. 180
C. 200
D. 250
👉 Answer: C
Q3. 60% of x = 180 → x = ?
A. 250
B. 280
C. 300
D. 320
👉 Answer: C
Q4. 12.5% of a number is 25. The number is:
A. 150
B. 180
C. 200
D. 220
👉 Answer: C
Q5. 75% of x = 225 → x = ?
A. 250
B. 280
C. 300
D. 320
👉 Answer: C
Q6. 5% of a number is 15. The number is:
A. 200
B. 250
C. 300
D. 350
👉 Answer: C
Q7. 20% of x = 80 → x = ?
A. 300
B. 350
C. 400
D. 450
👉 Answer: C
Q8. 80% of a number is 200. The number is:
A. 220
B. 240
C. 250
D. 300
👉 Answer: C
Q9. 30% of a number is 90. The number is:
A. 200
B. 250
C. 300
D. 350
👉 Answer: C
Q10. 15% of x = 45 → x = ?
A. 250
B. 280
C. 300
D. 320
👉 Answer: C
🔥 CSAT Percentage MCQs 2026: Increase & Decrease (Q11–20)
Q11. A number increases from 200 to 260. % increase?
A. 20%
B. 25%
C. 30%
D. 35%
👉 Answer: C
Q12. A number decreases from 500 to 400. % decrease?
A. 15%
B. 20%
C. 25%
D. 30%
👉 Answer: B
Q13. A number becomes 120 after 20% increase. Original number?
A. 90
B. 100
C. 110
D. 120
👉 Answer: B
Q14. A number reduced by 25% becomes 150. Original number?
A. 180
B. 200
C. 220
D. 250
👉 Answer: B
Q15. Increase from 80 to 100 is:
A. 20%
B. 25%
C. 30%
D. 35%
👉 Answer: B
Q16. 300 reduced by 10% becomes:
A. 260
B. 270
C. 280
D. 290
👉 Answer: B
Q17. 400 increased by 25% becomes:
A. 450
B. 480
C. 500
D. 520
👉 Answer: C
Q18. 600 reduced by 20% becomes:
A. 480
B. 500
C. 520
D. 540
👉 Answer: A
Q19. 150 increased by 40% becomes:
A. 190
B. 200
C. 210
D. 220
👉 Answer: C
Q20. 100 reduced by 30% becomes:
A. 60
B. 70
C. 80
D. 90
👉 Answer: B
These CSAT Percentage MCQs 2026 are designed to match the latest UPSC exam pattern.
🔥 CSAT Percentage MCQs 2026: Successive Percentage (Q21–30)
Q21. A number increases by 20% and then again by 20%. Net increase is:
A. 40%
B. 42%
C. 44%
D. 46%
👉 Answer: C
Q22. A number increases by 10% twice. Net increase is:
A. 20%
B. 21%
C. 22%
D. 19%
👉 Answer: B
Q23. A number increases by 30% and then decreases by 20%. Net change is:
A. 0%
B. 4% increase
C. 4% decrease
D. 6% increase
👉 Answer: B
Q24. A number decreases by 20% and then increases by 20%. Net change is:
A. 0%
B. 4% increase
C. 4% decrease
D. 6% decrease
👉 Answer: C
Q25. A number increases by 50% and then decreases by 50%. Net change is:
A. 0%
B. 25% decrease
C. 25% increase
D. 10% decrease
👉 Answer: B
Q26. Increase by 25% twice gives:
A. 50%
B. 56.25%
C. 60%
D. 52%
👉 Answer: B
Q27. +40% then -10% gives:
A. 26%
B. 30%
C. 36%
D. 28%
👉 Answer: A
Q28. -10% twice gives:
A. 20%
B. 19%
C. 18%
D. 21%
👉 Answer: B
Q29. +100% then -50% gives:
A. 0%
B. 50%
C. 25%
D. 10%
👉 Answer: A
Q30. Increase by 10% thrice gives:
A. 30%
B. 33.1%
C. 31%
D. 32%
👉 Answer: B
These CSAT Percentage MCQs 2026 are designed to match the latest UPSC exam pattern.
To further strengthen your preparation, you should also solve a variety of questions from our 1000+ UPSC Prelims Practice Questions, covering multiple subjects and difficulty levels.
🔥 CSAT Percentage MCQs 2026: Population Based(Q31–40)
Q31. A town’s population increases by 10% annually. What is the net increase in 2 years?
A. 20%
B. 21%
C. 22%
D. 25%
👉 Answer: B
Q32. A population decreases by 20% and then by 10%. Net decrease is:
A. 28%
B. 30%
C. 25%
D. 32%
👉 Answer: A
Q33. The population of a village is 1000 and increases by 20%. What is the new population?
A. 1100
B. 1150
C. 1200
D. 1250
👉 Answer: C
Q34. A population of 1200 is reduced by 25%. The new population is:
A. 800
B. 850
C. 900
D. 950
👉 Answer: C
Q35. A town’s population increases from 1000 to 1150. Percentage increase is:
A. 10%
B. 12%
C. 15%
D. 18%
👉 Answer: C
Q36. A population of 2000 increases by 30%. The new population is:
A. 2400
B. 2500
C. 2600
D. 2700
👉 Answer: C
Q37. A population decreases by 40% from 1000. The new population is:
A. 600
B. 650
C. 700
D. 750
👉 Answer: A
Q38. A town has 500 people. Population increases by 50%. New population is:
A. 700
B. 750
C. 800
D. 850
👉 Answer: B
Q39. Population increases from 800 to 1000. % increase is:
A. 20%
B. 25%
C. 30%
D. 35%
👉 Answer: B
Q40. Population decreases from 1000 to 900. % decrease is:
A. 5%
B. 8%
C. 10%
D. 12%
👉 Answer: C
Solving these CSAT Percentage MCQs 2026 will significantly improve your accuracy in the CSAT paper.
🔥 CSAT Percentage MCQs 2026: Profit, Loss & Discount (Q41–50)
Q41. Cost price = ₹100, selling price = ₹120. Profit % is:
A. 10%
B. 15%
C. 20%
D. 25%
👉 Answer: C
Q42. CP = ₹200, SP = ₹150. Loss % is:
A. 20%
B. 25%
C. 30%
D. 35%
👉 Answer: B
Q43. A man sells an item for ₹300 at 20% profit. Cost price is:
A. 200
B. 220
C. 250
D. 260
👉 Answer: C
Q44. CP = ₹400, loss = 10%. SP is:
A. 340
B. 350
C. 360
D. 370
👉 Answer: C
Q45. SP = ₹120, CP = ₹100. Profit % is:
A. 10%
B. 15%
C. 20%
D. 25%
👉 Answer: C
Q46. CP = ₹500, SP = ₹600. Profit % is:
A. 15%
B. 18%
C. 20%
D. 25%
👉 Answer: C
Q47. CP = ₹800, SP = ₹720. Loss % is:
A. 8%
B. 10%
C. 12%
D. 15%
👉 Answer: B
Q48. An item is sold at 25% profit for ₹500. Cost price is:
A. 350
B. 375
C. 400
D. 420
👉 Answer: C
Q49. CP = ₹250, loss = 20%. SP is:
A. 180
B. 190
C. 200
D. 210
👉 Answer: C
Q50. SP = ₹360, CP = ₹300. Profit % is:
A. 15%
B. 18%
C. 20%
D. 25%
👉 Answer: C
You can also explore our Environment MCQs for UPSC 2026, which are highly important for both Prelims and overall conceptual clarity.
🔥 CSAT Percentage MCQs 2026: Income & Salary(Q51–60)
Q51. A salary of ₹8000 increases by 25%. New salary is:
A. 9000
B. 9500
C. 10000
D. 10500
👉 Answer: C
Q52. Salary ₹10000 reduced by 10% becomes:
A. 8500
B. 9000
C. 9200
D. 9500
👉 Answer: B
Q53. Salary ₹5000 increased by 20% becomes:
A. 5500
B. 5800
C. 6000
D. 6200
👉 Answer: C
Q54. Salary ₹6000 reduced by 20% becomes:
A. 4500
B. 4800
C. 5000
D. 5200
👉 Answer: B
Q55. Salary ₹4000 increased by 50% becomes:
A. 5500
B. 6000
C. 6500
D. 7000
👉 Answer: B
Q56. Salary ₹9000 reduced by 10% becomes:
A. 8000
B. 8100
C. 8200
D. 8300
👉 Answer: B
Q57. Salary ₹7000 increased by 30% becomes:
A. 8800
B. 9000
C. 9100
D. 9200
👉 Answer: C
Q58. Salary ₹10000 increased by 10% becomes:
A. 10500
B. 10800
C. 11000
D. 11200
👉 Answer: C
Q59. Salary ₹12000 reduced by 25% becomes:
A. 8500
B. 8800
C. 9000
D. 9500
👉 Answer: C
Q60. Salary ₹15000 increased by 20% becomes:
A. 17000
B. 17500
C. 18000
D. 18500
👉 Answer: C
🔹 Why Practice CSAT Percentage MCQs 2026?
Regular practice of CSAT Percentage MCQs 2026 helps in mastering calculation speed, improving accuracy, and understanding exam-level patterns effectively.
🔥 CSAT Percentage MCQs 2026 : Fraction to Percentage (Q61–70)
Q61. What is 1/2 in percentage?
A. 25%
B. 50%
C. 75%
D. 100%
👉 Answer: B
Q62. What is 3/4 in percentage?
A. 60%
B. 65%
C. 70%
D. 75%
👉 Answer: D
Q63. What is 2/5 in percentage?
A. 35%
B. 40%
C. 45%
D. 50%
👉 Answer: B
Q64. What is 1/8 in percentage?
A. 10%
B. 11%
C. 12.5%
D. 15%
👉 Answer: C
Q65. What is 5/8 in percentage?
A. 60%
B. 62.5%
C. 65%
D. 70%
👉 Answer: B
Q66. What is 3/5 in percentage?
A. 55%
B. 60%
C. 65%
D. 70%
👉 Answer: B
Q67. What is 7/10 in percentage?
A. 65%
B. 70%
C. 75%
D. 80%
👉 Answer: B
Q68. What is 9/20 in percentage?
A. 40%
B. 45%
C. 50%
D. 55%
👉 Answer: B
Q69. What is 11/20 in percentage?
A. 50%
B. 52%
C. 55%
D. 60%
👉 Answer: C
Q70. What is 13/25 in percentage?
A. 48%
B. 50%
C. 52%
D. 54%
👉 Answer: C
These CSAT Percentage MCQs 2026 are designed to match the latest UPS
For improving your analytical thinking and speed, check out our Current Affairs MCQs UPSC Prelims 2026, which are designed based on the latest exam trends.
C exam pattern.
🔥CSAT Percentage MCQs 2026: Data Interpretation(Q71–80)
Q71. 40% of 500 is:
A. 180
B. 190
C. 200
D. 210
👉 Answer: C
Q72. 60% of 300 is:
A. 160
B. 170
C. 180
D. 190
👉 Answer: C
Q73. 25% of 800 is:
A. 150
B. 180
C. 200
D. 220
👉 Answer: C
Q74. 10% of 900 is:
A. 80
B. 90
C. 100
D. 110
👉 Answer: B
Q75. 75% of 200 is:
A. 140
B. 150
C. 160
D. 170
👉 Answer: B
Q76. 20% of 1000 is:
A. 150
B. 180
C. 200
D. 220
👉 Answer: C
Q77. 50% of 600 is:
A. 250
B. 300
C. 350
D. 400
👉 Answer: B
Q78. 30% of 700 is:
A. 200
B. 210
C. 220
D. 230
👉 Answer: B
Q79. 80% of 250 is:
A. 180
B. 190
C. 200
D. 210
👉 Answer: C
Q80. 15% of 400 is:
A. 50
B. 60
C. 70
D. 80
👉 Answer: B
🔥 CSAT Percentage MCQs 2026 : Mixture & Percentage (Q81–90)
Q81. In a mixture of 100L, water is 20%. Quantity of water is:
A. 15L
B. 20L
C. 25L
D. 30L
👉 Answer: B
Q82. In a solution, 30% is milk. Total volume = 200L. Milk quantity is:
A. 50L
B. 60L
C. 70L
D. 80L
👉 Answer: B
Q83. A mixture contains 40% water in 150L. Water quantity is:
A. 50L
B. 55L
C. 60L
D. 65L
👉 Answer: C
Q84. A solution has 25% salt in 80L. Salt quantity is:
A. 15L
B. 18L
C. 20L
D. 25L
👉 Answer: C
Q85. A mixture contains 50% oil in 60L. Oil quantity is:
A. 20L
B. 25L
C. 30L
D. 35L
👉 Answer: C
Q86. 10% of a 200L solution is salt. Quantity of salt is:
A. 10L
B. 15L
C. 20L
D. 25L
👉 Answer: C
Q87. A mixture has 60% alcohol in 100L. Alcohol quantity is:
A. 50L
B. 60L
C. 70L
D. 80L
👉 Answer: B
Q88. A mixture contains 80% pure substance in 50L. Quantity of pure substance is:
A. 30L
B. 35L
C. 40L
D. 45L
👉 Answer: C
Q89. A solution has 70% acid in 90L. Acid quantity is:
A. 60L
B. 63L
C. 65L
D. 70L
👉 Answer: B
Q90. A mixture contains 90% water in 40L. Water quantity is:
A. 32L
B. 34L
C. 36L
D. 38L
👉 Answer: C
🔥 CSAT Percentage MCQs 2026 : Advanced Concepts (Q91–100)
Q91. A is 25% more than B. B is what percent less than A?
A. 15%
B. 18%
C. 20%
D. 25%
👉 Answer: C
Q92. A is 50% more than B. B is what percent less than A?
A. 25%
B. 30%
C. 33.33%
D. 35%
👉 Answer: C
Q93. A is 100% more than B. B is what percent less than A?
A. 40%
B. 45%
C. 50%
D. 55%
👉 Answer: C
Q94. A is 20% less than B. A is what percent of B?
A. 70%
B. 75%
C. 80%
D. 85%
👉 Answer: C
Q95. A is 10% more than B. B is what percent less than A?
A. 8%
B. 9.09%
C. 10%
D. 11%
👉 Answer: B
Q96. A is 40% less than B. A is what percent of B?
A. 50%
B. 55%
C. 60%
D. 65%
👉 Answer: C
Q97. A is 60% more than B. B is what percent less than A?
A. 30%
B. 35%
C. 37.5%
D. 40%
👉 Answer: C
Q98. A is 80% more than B. B is what percent less than A?
A. 40%
B. 42%
C. 44.44%
D. 45%
👉 Answer: C
Q99. A is 30% less than B. A is what percent of B?
A. 60%
B. 65%
C. 70%
D. 75%
👉 Answer: C
Q100. A is 70% more than B. B is what percent less than A?
A. 38%
B. 40%
C. 41.17%
D. 42%
👉 Answer: C
Along with these CSAT questions, it is highly recommended to practice subject-wise MCQs regularly from our platform. You can explore important topics from Polity, Economy, History and Current Affairs which are crucial for building a strong foundation for UPSC Prelims and improving overall accuracy.
🔍 Hints & Solutions
Hints & Solutions (Q1–10)
Q1
👉 Hint: 40% = 2/5
👉 Solution: x × (2/5) = 120 → x = 120 × 5/2 = 300
Q2
👉 Hint: 25% = 1/4
👉 Solution: x/4 = 50 → x = 200
Q3
👉 Hint: 60% = 3/5
👉 Solution: x × (3/5) = 180 → x = 180 × 5/3 = 300
Q4
👉 Hint: 12.5% = 1/8
👉 Solution: x/8 = 25 → x = 200
Q5
👉 Hint: 75% = 3/4
👉 Solution: x × (3/4) = 225 → x = 300
Q6
👉 Hint: 5% = 1/20
👉 Solution: x/20 = 15 → x = 300
Q7
👉 Hint: 20% = 1/5
👉 Solution: x/5 = 80 → x = 400
Q8
👉 Hint: 80% = 4/5
👉 Solution: x × (4/5) = 200 → x = 250
Q9
👉 Hint: 30% = 3/10
👉 Solution: x × (3/10) = 90 → x = 300
Q10
👉 Hint: 15% = 3/20
👉 Solution: x × (3/20) = 45 → x = 300
🔍 Hints & Solutions (Q11–20)
Q11
👉 Hint: Increase = (New − Old) / Old × 100
👉 Solution: (260 − 200)/200 × 100 = 60/200 × 100 = 30%
Q12
👉 Hint: Decrease = (Old − New) / Old × 100
👉 Solution: (500 − 400)/500 × 100 = 100/500 × 100 = 20%
Q13
👉 Hint: Final = Original × 1.20
👉 Solution: Original = 120 / 1.20 = 100
Q14
👉 Hint: Final = Original × 0.75
👉 Solution: Original = 150 / 0.75 = 200
Q15
👉 Hint: Increase = 20/80 × 100
👉 Solution: = 25%
Q16
👉 Hint: 10% of 300 = 30
👉 Solution: 300 − 30 = 270
Q17
👉 Hint: 25% of 400 = 100
👉 Solution: 400 + 100 = 500
Q18
👉 Hint: 20% of 600 = 120
👉 Solution: 600 − 120 = 480
Q19
👉 Hint: 40% of 150 = 60
👉 Solution: 150 + 60 = 210
Q20
👉 Hint: 30% of 100 = 30
👉 Solution: 100 − 30 = 70
🔍 Hints & Solutions (Q21–30)
Q21
👉 Hint: Net % = a + b + (ab/100)
👉 Solution: 10 + 20 + (10×20/100) = 30 + 2 = 32% increase
Q22
👉 Hint: Decrease formula = a + b − (ab/100)
👉 Solution: 20 + 10 − (20×10/100) = 30 − 2 = 28% decrease
Q23
👉 Hint: Increase then decrease
👉 Solution: 20 − 20 − (400/100) = −4%
➡️ 4% decrease
Q24
👉 Hint: 25% = 1/4
👉 Solution: ×5/4 then ×3/4 → 15/16
➡️ Net decrease = 6.25%
Q25
👉 Hint: 10%, 20%, 30%
👉 Solution: 10 + 20 + 30 + cross terms
= 60 + (2 + 6 + 3) + 6 = 71% increase
Q26
👉 Hint: Same % increase & decrease
👉 Solution: Always loss
= (a²/100) = 400/100 = 4% loss
Q27
👉 Hint: 50% increase → ×1.5
👉 Solution: 200 × 1.5 = 300
Q28
👉 Hint: 25% decrease → ×0.75
👉 Solution: 400 × 0.75 = 300
Q29
👉 Hint: 20% increase → ×1.2
👉 Solution: 500 × 1.2 = 600
Q30
👉 Hint: 10% decrease → ×0.9
👉 Solution: 600 × 0.9 = 540
🔍 Hints & Solutions (Q31–40)
Q31
👉 Hint: Profit % = (Profit / CP) × 100
👉 Solution: (120 − 100)/100 × 100 = 20% profit
Q32
👉 Hint: Loss % = (Loss / CP) × 100
👉 Solution: (500 − 400)/500 × 100 = 20% loss
Q33
👉 Hint: SP = CP × (1 + profit%)
👉 Solution: 200 × 1.25 = 250
Q34
👉 Hint: SP = CP × (1 − loss%)
👉 Solution: 300 × 0.8 = 240
Q35
👉 Hint: Discount = (Marked − SP)/Marked × 100
👉 Solution: (500 − 400)/500 × 100 = 20%
Q36
👉 Hint: Successive discounts
👉 Solution: Net discount = 20 + 10 − (2) = 28%
Q37
👉 Hint: Profit = SP − CP
👉 Solution: 360 − 300 = 60 → (60/300 × 100) = 20%
Q38
👉 Hint: Loss = CP − SP
👉 Solution: 400 − 360 = 40 → (40/400 × 100) = 10%
Q39
👉 Hint: SP = CP × 1.15
👉 Solution: 200 × 1.15 = 230
Q40
👉 Hint: SP = CP × 0.9
👉 Solution: 500 × 0.9 = 450
🔍 Hints & Solutions (Q41–50)
Q41
👉 Hint: Ratio → percentage conversion
👉 Solution: 2:3 → Total = 5
= (2/5) × 100 = 40%
Q42
👉 Hint: Remaining %
👉 Solution: 40% used → Remaining = 60%
Q43
👉 Hint: Ratio 3:2
👉 Solution: Total = 5
= (3/5) × 100 = 60%
Q44
👉 Hint: 25% of 200
👉 Solution: = 50 → Remaining = 150
Q45
👉 Hint: Ratio → fraction
👉 Solution: 4:1 → Total = 5
= (4/5) × 100 = 80%
Q46
👉 Hint: 20% of total
👉 Solution: 20% = 1/5
➡️ Total = 50 × 5 = 250
Q47
👉 Hint: Ratio 5:5
👉 Solution: Equal parts
= 50% each
Q48
👉 Hint: Increase 50%
👉 Solution: 100 + 50 = 150
Q49
👉 Hint: Ratio 1:4
👉 Solution: Total = 5
= (1/5) × 100 = 20%
Q50
👉 Hint: Remaining %
👉 Solution: 70% used → Remaining = 30%
For the latest updates, syllabus, and official notifications, aspirants should always refer to the Union Public Service Commission official website.
🔍 Hints & Solutions (Q51–60)
Q51
👉 Hint: Milk = 60% of 100
👉 Solution: 60 liters milk
Q52
👉 Hint: Water = 40% of 200
👉 Solution: 80 liters water
Q53
👉 Hint: Total mixture
👉 Solution: 60 + 40 = 100 liters
Q54
👉 Hint: New total = 120 liters
👉 Solution: Milk % = 60/120 × 100 = 50%
Q55
👉 Hint: Ratio milk:water = 1:1
👉 Solution: Equal → 50% each
Q56
👉 Hint: Add water → milk % decreases
👉 Solution: 50% → approx 40%
Q57
👉 Hint: Remove 20% mixture
👉 Solution: Same ratio remains
Q58
👉 Hint: Replace method
👉 Solution: Milk reduces gradually
Q59
👉 Hint: Final % after replacement
👉 Solution: approx 36% milk
Q60
👉 Hint: Alligation concept
👉 Solution: Ratio = difference method
🔍 Hints & Solutions (Q61–70)
Q61
👉 Hint: % = (Part / Total) × 100
👉 Solution: 50/200 × 100 = 25%
Q62
👉 Hint: Compare percentages
👉 Solution: 80/400 × 100 = 20%
Q63
👉 Hint: Increase %
👉 Solution: (120 − 100)/100 × 100 = 20%
Q64
👉 Hint: Decrease %
👉 Solution: (300 − 240)/300 × 100 = 20%
Q65
👉 Hint: Contribution share
👉 Solution: 150/500 × 100 = 30%
Q66
👉 Hint: Remaining %
👉 Solution: 100 − 35 = 65%
Q67
👉 Hint: Ratio to %
👉 Solution: 2:8 → 2/10 × 100 = 20%
Q68
👉 Hint: Combined total
👉 Solution: 200 + 300 = 500
➡️ % = 200/500 × 100 = 40%
Q69
👉 Hint: Difference %
👉 Solution: (250 − 200)/200 × 100 = 25%
Q70
👉 Hint: Average %
👉 Solution: (20 + 30)/2 = 25%
🔍 Hints & Solutions (Q71–80)
Q71
👉 Hint: Pass % = Passed / Total × 100
👉 Solution: 360/600 × 100 = 60%
Q72
👉 Hint: Fail % = 100 − pass %
👉 Solution: 100 − 60 = 40%
Q73
👉 Hint: Boys:Girls = 3:2
👉 Solution: Total = 5
= (3/5) × 100 = 60% boys
Q74
👉 Hint: Population increase 20%
👉 Solution: 1000 × 1.2 = 1200
Q75
👉 Hint: Decrease 10%
👉 Solution: 1200 × 0.9 = 1080
Q76
👉 Hint: Net change
👉 Solution: 20 − 10 − (2) = 8% increase
Q77
👉 Hint: Income increase 25%
👉 Solution: 400 × 1.25 = 500
Q78
👉 Hint: Expenditure increase 20%
👉 Solution: Savings decrease
Q79
👉 Hint: Savings = Income − Expenditure
👉 Solution: New savings calculate → Reduced
Q80
👉 Hint: % change in savings
👉 Solution: approx −20% (decrease)
🔍 Hints & Solutions (Q81–90)
Q81
👉 Hint: Increase x% then decrease x%
👉 Solution: Net loss = (x²/100)
= 400/100 = 4% loss
Q82
👉 Hint: Successive increase
👉 Solution: 20 + 30 + (6) = 56% increase
Q83
👉 Hint: Reverse %
👉 Solution: Final = 120 → Original = 120 / 1.2 = 100
Q84
👉 Hint: Decrease 25% = multiply 0.75
👉 Solution: 400 × 0.75 = 300
Q85
👉 Hint: Increase 50% = multiply 1.5
👉 Solution: 200 × 1.5 = 300
Q86
👉 Hint: Ratio → %
👉 Solution: 7:3 → 7/10 × 100 = 70%
Q87
👉 Hint: Difference %
👉 Solution: (150 − 120)/120 × 100 = 25%
Q88
👉 Hint: Profit on SP
👉 Solution: Convert to CP base
➡️ approx 20% profit
Q89
👉 Hint: Combined %
👉 Solution: Weighted average
Q90
👉 Hint: Replacement effect
👉 Solution: Decreasing trend
🔍 Hints & Solutions(Q91–100)
Q91
👉 Hint: Increase 25% → ×1.25
👉 Solution: 240 × 1.25 = 300
Q92
👉 Hint: Decrease 20% → ×0.8
👉 Solution: 500 × 0.8 = 400
Q93
👉 Hint: Net % (10% ↑, 10% ↓)
👉 Solution: Loss = (10²/100) = 1% loss
Q94
👉 Hint: 40% of number = 200
👉 Solution: x × 0.4 = 200 → x = 500
Q95
👉 Hint: Ratio 3:7
👉 Solution: Total = 10
= (3/10) × 100 = 30%
Q96
👉 Hint: Profit = SP − CP
👉 Solution: (600 − 500)/500 × 100 = 20% profit
Q97
👉 Hint: Discount
👉 Solution: (1000 − 800)/1000 × 100 = 20%
Q98
👉 Hint: Successive increase
👉 Solution: 20 + 10 + (2) = 32% increase
Q99
👉 Hint: Mixture %
👉 Solution: 40/100 × 100 = 40%
Q100
👉 Hint: Reverse %
👉 Solution: Final = 90 after 10% decrease
➡️ Original = 90 / 0.9 = 100
To strengthen your overall CSAT preparation, you should also practice other important topics like logical reasoning and reading comprehension. You can check our detailed guide on CSAT 2026 Strategy and solve 1000+ UPSC Prelims Practice Questions available on our website.
🏁 CONCLUSION: CSAT Percentage MCQs 2026
Mastering percentage concepts is crucial for clearing CSAT with confidence. These CSAT Percentage MCQs 2026 provide a complete practice set covering all important patterns and difficulty levels. By solving these questions regularly, you will improve your speed, accuracy, and problem-solving ability.
Make sure to revise these questions multiple times and focus on understanding the concepts rather than memorizing formulas. Consistent practice with these CSAT Percentage MCQs 2026 can give you a significant edge in UPSC Prelims Paper 2.
Consistent practice with these CSAT Percentage MCQs 2026 can give you a significant edge in UPSC Prelims. Make sure you revise these CSAT Percentage MCQs 2026 multiple times to boost your confidence.
For deeper conceptual clarity, you can also refer to trusted resources like NCERT Mathematics books and official UPSC syllabus available on the UPSC website, which provide a strong foundation for solving CSAT Percentage MCQs 2026.
For accurate and updated information regarding UPSC exams, always visit the official website of the Union Public Service Commission.
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