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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 865 · 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.

NameDateTime takenScore ___ / 40
  1. 1.A watch marked at ₹860 is sold for ₹817. What is the discount percent?
  2. 2.A shopkeeper buys a school bag for ₹100 and sells it for ₹95. Find the loss percent.
  3. 3.A shopkeeper buys a pair of shoes for ₹220 and sells it for ₹286. Find the profit percent.
  4. 4.A pair of shoes is marked at ₹465. The shop takes 20% off, and then a further 50% off the new price. How much do you pay (in ₹)?
  5. 5.A table fan marked at ₹3280 is sold for ₹2460. What is the discount percent?
  6. 6.Marks of 4 friends in a quiz: 27, 21, 33, 59. What is their average mark?
  7. 7.How many minutes does a car take to go 144 km at 60 km/h?
  8. 8.The price of a school bag changes from ₹1060 to ₹1272. By what percent did it go up?
  9. 9.What is the difference between the compound interest and the simple interest on ₹40000 at 25% per year for 2 years (in ₹)?
  10. 10.The average of 9 numbers is 44. When one more number is added, the average becomes 48. What number was added?
  11. 11.Find the simple interest on ₹10800 at 10% per year for 1 year (in ₹).
  12. 12.Diya can finish a job in 13 days and Nisha in 3 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
  13. 13.The average of 9 numbers is 54. When one more number is added, the average becomes 56. What number was added?
  14. 14.Find the simple interest on ₹12700 at 6% per year for 5 years (in ₹).
  15. 15.Find the amount when ₹34375 is invested at 8% per year compound interest for 2 years (in ₹).
  16. 16.In 19 years, Aarav will be twice as old as Aarav was 3 years ago. How old is Aarav now?
  17. 17.The average of 4 numbers is 53. When one more number is added, the average becomes 57. What number was added?
  18. 18.Find the simple interest on ₹14100 at 2% per year for 1 year (in ₹).
  19. 19.Find the amount when ₹36400 is invested at 15% per year compound interest for 2 years (in ₹).
  20. 20.Marks of 4 friends in a quiz: 16, 11, 32, 33. What is their average mark?
  21. 21.Kabir cycles to his school at 20 km/h and comes back by the same road at 12 km/h. What is his average speed for the whole trip (in km/h)?
  22. 22.The simple interest on ₹18700 for 5 years is ₹3740. What is the rate of interest (% per year)?
  23. 23.A bicycle is marked at ₹2460. The shop gives a 20% discount. How much do you pay (in ₹)?
  24. 24.Dev’s father is twice as old as Dev. The sum of their ages is 30 years. How old is Dev?
  25. 25.Nisha’s father is twice as old as Nisha. The sum of their ages is 24 years. How old is Nisha?
  26. 26.The average of 7 numbers is 46. When one more number is added, the average becomes 47. What number was added?
  27. 27.Find the compound interest on ₹36250 at 12% per year for 2 years, added every year (in ₹).
  28. 28.The price of a school bag changes from ₹4180 to ₹3344. By what percent did it come down?
  29. 29.A pair of shoes is marked at ₹1040. The shop takes 10% off, and then a further 50% off the new price. How much do you pay (in ₹)?
  30. 30.Diya puts ₹1700 in a bank at 4% simple interest per year. How much will she have after 1 year (in ₹)?
  31. 31.Find the amount when ₹6375 is invested at 20% per year compound interest for 3 years (in ₹).
  32. 32.In how many years will ₹800 earn ₹80 as simple interest at 5% per year?
  33. 33.Marks of 6 friends in a quiz: 33, 11, 5, 12, 10, 49. What is their average mark?
  34. 34.Two discounts of 10% and 25%, one after the other, are the same as one discount of what percent? =
  35. 35.Diya puts ₹9100 in a bank at 8% simple interest per year. How much will she have after 3 years (in ₹)?
  36. 36.Find the amount when ₹32000 is invested at 15% per year compound interest for 3 years (in ₹).
  37. 37.The simple interest on ₹12700 for 3 years is ₹2667. What is the rate of interest (% per year)?
  38. 38.10 years ago, Karan’s mother was three times as old as Karan. The mother is 19 years old now. How old is Karan now?
  39. 39.6 years ago, Aarav’s mother was twice as old as Aarav. The mother is 18 years old now. How old is Aarav now?
  40. 40.A price goes up by 50% and then goes up by 25% more. By what percent has it gone up in all? =

Answer key

  1. 5
  2. 5
  3. 30
  4. 186
  5. 25
  6. 35
  7. 144
  8. 20
  9. 2500
  10. 84
  11. 1080
  12. 39/16
  13. 74
  14. 3810
  15. 40095
  16. 25
  17. 73
  18. 282
  19. 48139
  20. 23
  21. 15
  22. 4
  23. 1968
  24. 10
  25. 8
  26. 54
  27. 9222
  28. 20
  29. 468
  30. 1768
  31. 11016
  32. 2
  33. 20
  34. 32.5
  35. 11284
  36. 48668
  37. 7
  38. 13
  39. 12
  40. 87.5

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