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← Index: Percentage — Complete Exam Mastery GuideChapter 18
Study Guide · Chapter 18

3.18 Practice Question Set A — Basic Level

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  1. (Fraction–Percentage) Convert 3/8 into a percentage.
    1. 32.5% (b) 35% (c) 37.5% (d) 40%
  2. (Percentage of a Number) What is 15% of 480?
    1. 68 (b) 72 (c) 75 (d) 80
  3. (Decimal–Percentage) Express 0.06 as a percentage.
    1. 0.06% (b) 0.6% (c) 6% (d) 60%
  4. (Finding the Whole) If 20% of a number is 50, find the number.
    1. 100 (b) 200 (c) 250 (d) 300
  5. (% Increase) A number is increased from 40 to 50. Find the percentage increase.
    1. 10% (b) 15% (c) 20% (d) 25%
  6. (% Decrease) A number decreases from 60 to 45. Find the percentage decrease.
    1. 15% (b) 20% (c) 25% (d) 30%
  7. (Ratio–Percentage) Convert the ratio 3 : 5 into a percentage of the first part.
    1. 37.5% (b) 40% (c) 50% (d) 60%
  8. (What % of) 75 is what percent of 250?
    1. 20% (b) 25% (c) 30% (d) 35%
  9. (Fraction Table) Convert 1/6 into a percentage (nearest standard table value).
    1. 12.5% (b) 14.28% (c) 16.67% (d) 20%
  10. (Percentage as Fraction) If the price of an item increases by 25%, what fraction does this increase represent?
    1. 1/6 (b) 1/5 (c) 1/4 (d) 1/3
  11. (Fraction Shortcut) Calculate 12.5% of 640.
    1. 64 (b) 72 (c) 80 (d) 96
  12. (Marks Percentage) A student scored 45 out of 60. Find the percentage of marks.
    1. 65% (b) 70% (c) 75% (d) 80%
  13. (Population) The population of a town is 8,000. It increases by 10%. Find the new population.
    1. 8,400 (b) 8,600 (c) 8,800 (d) 9,000
  14. (A more than B → B less than A) If A is 20% more than B, then B is what percent less than A?
    1. 15% (b) 16.67% (c) 20% (d) 25%
  15. (Depreciation) A machine worth ₹50,000 depreciates by 10% in a year. Find its value after one year.
    1. ₹40,000 (b) ₹42,000 (c) ₹45,000 (d) ₹48,000
  16. (Percentage of a Number) What is 8% of 250?
    1. 18 (b) 20 (c) 24 (d) 25
  17. (Finding the Whole) 30% of a number is 90. Find the number.
    1. 270 (b) 280 (c) 300 (d) 310
  18. (% Increase) A number increases from 120 to 150. Find the percentage increase.
    1. 20% (b) 25% (c) 30% (d) 35%
  19. (Fraction Table) Convert 1/8 into a percentage.
    1. 10% (b) 12.5% (c) 14.28% (d) 16.67%
  20. (Ratio–Percentage) The ratio of milk to water in a mixture is 7 : 3. What percentage of the mixture is milk?
    1. 60% (b) 65% (c) 70% (d) 75%
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