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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 2 · 40 questions
TalentJR

The method (Find the 100%): Name the topic and write its formula. For percent questions, decide which value is the 100%. Check units (₹, km/h, days) and whether the answer is sensible.

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  1. 1.The price of a school bag changes from ₹2480 to ₹3100. By what percent did it go up?
  2. 2.Priya works three times as fast as Isha. Together they finish a job in 9 days. How many days would Isha take alone?
  3. 3.The price of a school bag changes from ₹940 to ₹1034. By what percent did it go up?
  4. 4.A cricket bat marked at ₹4000 is sold for ₹3400. What is the discount percent?
  5. 5.By selling a watch for ₹68, a shopkeeper makes a loss of 15%. What did the watch cost the shopkeeper (in ₹)?
  6. 6.In 14 years, Rohan will be twice as old as Rohan was 2 years ago. How old is Rohan now?
  7. 7.The simple interest on ₹19800 for 4 years is ₹2376. What is the rate of interest (% per year)?
  8. 8.A shopkeeper buys a pair of shoes for ₹1560 and sells it for ₹1092. Find the loss percent.
  9. 9.Aarav’s batting average after 5 innings is 24 runs. How many runs must Aarav score in the next innings to raise the average to 27?
  10. 10.A watch bought for ₹1900 is sold at a loss of 25%. What is the selling price (in ₹)?
  11. 11.The average of 8 numbers is 45. When one more number is added, the average becomes 51. What number was added?
  12. 12.Find the amount when ₹41200 is invested at 5% per year compound interest for 2 years (in ₹).
  13. 13.Find the compound interest on ₹11840 at 25% per year for 2 years, added every year (in ₹).
  14. 14.The average weight of 11 children is 42 kg. One child, who weighs 62 kg, leaves the group. What is the new average weight (in kg)?
  15. 15.Pooja is 2 years older than Kabir. In 2 years, the sum of their ages will be 20. How old is Kabir now?
  16. 16.What is the difference between the compound interest and the simple interest on ₹38900 at 20% per year for 2 years (in ₹)?
  17. 17.A school bag marked at ₹640 is sold for ₹480. What is the discount percent?
  18. 18.By selling a cricket bat for ₹1128, a shopkeeper makes a loss of 40%. What did the cricket bat cost the shopkeeper (in ₹)?
  19. 19.A water tank holds 2600 litres. 10% of the water is used. How many litres are left?
  20. 20.Find the amount when ₹34400 is invested at 5% per year compound interest for 2 years (in ₹).
  21. 21.Find the compound interest on ₹15625 at 12% per year for 3 years, added every year (in ₹).
  22. 22.By selling a cricket bat for ₹1452, a shopkeeper makes a profit of 10%. What did the cricket bat cost the shopkeeper (in ₹)?
  23. 23.Find the amount when ₹31200 is invested at 5% per year compound interest for 2 years (in ₹).
  24. 24.Kavya is 5 years older than Kabir. In 7 years, the sum of their ages will be 47. How old is Kabir now?
  25. 25.Change 25 m/s into km/h.
  26. 26.A watch bought for ₹920 is sold at a loss of 40%. What is the selling price (in ₹)?
  27. 27.A pair of shoes is marked at ₹100. The shop gives a 50% discount. How much do you pay (in ₹)?
  28. 28.Change 15 m/s into km/h.
  29. 29.A shopkeeper buys a cricket bat for ₹1140 and sells it for ₹912. Find the loss percent.
  30. 30.A price goes up by 25% and then goes up by 40% more. By what percent has it gone up in all? =
  31. 31.In 22 years, Farhan will be three times as old as Farhan was 4 years ago. How old is Farhan now?
  32. 32.9 years ago, Manav’s mother was three times as old as Manav. The mother is 39 years old now. How old is Manav now?
  33. 33.The simple interest on ₹1000 for 3 years is ₹120. What is the rate of interest (% per year)?
  34. 34.A school bag marked at ₹140 is sold for ₹126. What is the discount percent?
  35. 35.Change 10 m/s into km/h.
  36. 36.A price comes down by 5% and then comes down by 10% more. By what percent has it come down in all? =
  37. 37.After a 25% discount, a school bag costs ₹2790. What was its marked price (in ₹)?
  38. 38.Karan can finish a job in 16 days and Diya in 10 days. What fraction of the job do they finish if they work together for 3 days? =
  39. 39.A shopkeeper buys a school bag for ₹720 and sells it for ₹360. Find the loss percent.
  40. 40.Find the simple interest on ₹17600 at 12% per year for 5 years (in ₹).

Answer key

  1. 25
  2. 36
  3. 10
  4. 15
  5. 80
  6. 18
  7. 3
  8. 30
  9. 42
  10. 1425
  11. 99
  12. 45423
  13. 6660
  14. 40
  15. 7
  16. 1556
  17. 25
  18. 1880
  19. 2340
  20. 37926
  21. 6327
  22. 1320
  23. 34398
  24. 14
  25. 90
  26. 552
  27. 50
  28. 54
  29. 20
  30. 75
  31. 17
  32. 19
  33. 4
  34. 10
  35. 36
  36. 14.5
  37. 3720
  38. 39/80
  39. 50
  40. 10560

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