Percentage MCQs
Practice Percentage MCQs with answers and detailed explanations. Learn percentage calculations, increase and decrease percentages, profit and loss percentages, discounts, percentage change and exam-oriented quantitative aptitude questions designed for SSC, Railway, Banking, UPSC, JKSSB, Police, Teaching and other competitive exams.
Question #261
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Mixture 40 L milk-water with 10% water. Water added to make 20%:
Correct Answer: Option C
Explanation:
Water=4 L, milk=36 L. New total = 36/0.8 = 45 L, water added = 5 L.
Water=4 L, milk=36 L. New total = 36/0.8 = 45 L, water added = 5 L.
This question belongs to:
Maths
Percentage
Question #262
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Population 12000, first year +5%, second year -5%. Population after 2 years:
Correct Answer: Option D
Explanation:
12000×1.05×0.95 = 11970.
12000×1.05×0.95 = 11970.
This question belongs to:
Maths
Percentage
Question #263
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Price reduced 25%, enables buying 3 kg more for Rs. 90. Reduced price/kg:
Correct Answer: Option C
Explanation:
Original price x, xy=90. New 0.75x(y+3)=90 → 0.75×90 + 2.25x=90 → x=10, reduced 7.5.
Original price x, xy=90. New 0.75x(y+3)=90 → 0.75×90 + 2.25x=90 → x=10, reduced 7.5.
This question belongs to:
Maths
Percentage
Question #264
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Sold watch at 5% loss. If sold for Rs. 27 more, gain 7%. Cost price:
Correct Answer: Option C
Explanation:
CP=x, SP=0.95x. 0.95x+27=1.07x → 0.12x=27 → x=225.
CP=x, SP=0.95x. 0.95x+27=1.07x → 0.12x=27 → x=225.
This question belongs to:
Maths
Percentage
Question #265
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Employees reduced in ratio 9:8, wages increased in ratio 14:15. Wage bill ratio:
Correct Answer: Option D
Explanation:
Initial bill = E×W, final = (8/9 E)×(15/14 W) = 20/21 of initial, ratio 21:20.
Initial bill = E×W, final = (8/9 E)×(15/14 W) = 20/21 of initial, ratio 21:20.
This question belongs to:
Maths
Percentage
Question #266
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40% read newspaper A, 50% read B, 10% both. % read neither:
Correct Answer: Option C
Explanation:
At least one = 40+50-10=80%, neither = 20%.
At least one = 40+50-10=80%, neither = 20%.
This question belongs to:
Maths
Percentage
Question #267
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A's income 20% less than B, B's 25% less than C. C's income is what % more than A's?
Correct Answer: Option D
Explanation:
A=0.8B, B=0.75C → A=0.6C → C = A/0.6, more 66.67%.
A=0.8B, B=0.75C → A=0.6C → C = A/0.6, more 66.67%.
This question belongs to:
Maths
Percentage
Question #268
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Number increased by 20%. By what % should new number be decreased to get original?
Correct Answer: Option C
Explanation:
Original 100, new 120. Decrease % = (20/120)×100 = 16.67%.
Original 100, new 120. Decrease % = (20/120)×100 = 16.67%.
This question belongs to:
Maths
Percentage
Question #269
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80 L mixture, 20% water. Water added to make 50%:
Correct Answer: Option B
Explanation:
Milk=64 L, water=16 L. For milk 50%, total = 128 L, add 48 L water.
Milk=64 L, water=16 L. For milk 50%, total = 128 L, add 48 L water.
This question belongs to:
Maths
Percentage
Question #270
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Coal price up 25%, expenditure to rise only 10%. Reduce consumption by:
Correct Answer: Option D
Explanation:
1.25 × x = 1.1 → x = 0.88, reduction 12%.
1.25 × x = 1.1 → x = 0.88, reduction 12%.
This question belongs to:
Maths
Percentage
Question #271
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A's marks 25% more than B, B's 20% less than C. A=150, find C:
Correct Answer: Option A
Explanation:
A=1.25B, B=0.8C → A=1.25×0.8C = C, so C=150.
A=1.25B, B=0.8C → A=1.25×0.8C = C, so C=150.
This question belongs to:
Maths
Percentage
Question #272
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Original salary 20000, increased 10% then decreased 10%. Final salary:
Correct Answer: Option C
Explanation:
20000×1.1×0.9 = 19800.
20000×1.1×0.9 = 19800.
This question belongs to:
Maths
Percentage
Question #273
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Difference between 45% and 18% of a number is 1458. Number:
Correct Answer: Option D
Explanation:
27% of x = 1458 → x = 1458/0.27 = 5400.
27% of x = 1458 → x = 1458/0.27 = 5400.
This question belongs to:
Maths
Percentage
Question #274
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Allows 10% discount, still gains 8% profit. Markup % on CP:
Correct Answer: Option A
Explanation:
CP=100, SP=108, MP=108/0.9=120, markup 20%.
CP=100, SP=108, MP=108/0.9=120, markup 20%.
This question belongs to:
Maths
Percentage
Question #275
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Length +25%, breadth -20%. Change in area:
Correct Answer: Option C
Explanation:
1.25×0.8 = 1, 0% change.
1.25×0.8 = 1, 0% change.
This question belongs to:
Maths
Percentage
Question #276
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Rice price reduced 20%, buys 10 kg more for Rs. 200. Reduced price/kg:
Correct Answer: Option B
Explanation:
Original price x, xy=200. 0.8x(y+10)=200 → 160+8x=200 → x=5, reduced 4.
Original price x, xy=200. 0.8x(y+10)=200 → 160+8x=200 → x=5, reduced 4.
This question belongs to:
Maths
Percentage
Question #277
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A gets 25% more than B, B gets 20% more than C. C=500, A's share:
Correct Answer: Option D
Explanation:
C=500, B=600, A=600×1.25=750.
C=500, B=600, A=600×1.25=750.
This question belongs to:
Maths
Percentage
Question #278
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Price increased 15% then decreased 10%. Net change:
Correct Answer: Option A
Explanation:
1.15×0.9 = 1.035, increase 3.5%.
1.15×0.9 = 1.035, increase 3.5%.
This question belongs to:
Maths
Percentage
Question #279
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Candidate A got 60% valid votes, defeated B by 3000 votes. 25% invalid. Total votes:
Correct Answer: Option D
Explanation:
Valid V, margin 0.2V=3000 → V=15000. Total T, 0.75T=15000 → T=20000.
Valid V, margin 0.2V=3000 → V=15000. Total T, 0.75T=15000 → T=20000.
This question belongs to:
Maths
Percentage
Question #280
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Two numbers are 20% and 30% more than a third. Ratio of the two numbers:
Correct Answer: Option C
Explanation:
Third=100, first=120, second=130, ratio 120:130 = 12:13.
Third=100, first=120, second=130, ratio 120:130 = 12:13.
This question belongs to:
Maths
Percentage
