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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 103 · 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.What is the difference between the compound interest and the simple interest on ₹20000 at 4% per year for 2 years (in ₹)?
  2. 2.A car runs for 4 hours at 42 km/h and then for 4 hours at 52 km/h. What is its average speed for the whole journey (in km/h)?
  3. 3.Find the simple interest on ₹19500 at 15% per year for 4 years (in ₹).
  4. 4.Marks of 4 friends in a quiz: 46, 61, 59, 38. What is their average mark?
  5. 5.Change 36 km/h into metres per second.
  6. 6.A cricket bat is marked at ₹2840. The shop gives a 40% discount. How much do you pay (in ₹)?
  7. 7.A town has 2000 people. Its population grows by 10%. How many people live there now?
  8. 8.What is the difference between the compound interest and the simple interest on ₹43200 at 25% per year for 2 years (in ₹)?
  9. 9.Marks of 6 friends in a quiz: 36, 40, 57, 31, 54, 34. What is their average mark?
  10. 10.In how many years will ₹1700 earn ₹204 as simple interest at 4% per year?
  11. 11.By selling a watch for ₹253, a shopkeeper makes a profit of 15%. What did the watch cost the shopkeeper (in ₹)?
  12. 12.Find the simple interest on ₹4300 at 5% per year for 2 years (in ₹).
  13. 13.A shopkeeper buys a school bag for ₹1940 and sells it for ₹2425. Find the profit percent.
  14. 14.Two discounts of 25% and 50%, one after the other, are the same as one discount of what percent? =
  15. 15.In 22 years, Rohan will be twice as old as Rohan was 2 years ago. How old is Rohan now?
  16. 16.Find the compound interest on ₹46875 at 12% per year for 3 years, added every year (in ₹).
  17. 17.A town has 2740 people. Its population grows by 15%. How many people live there now?
  18. 18.Find the compound interest on ₹18675 at 20% per year for 2 years, added every year (in ₹).
  19. 19.10 years ago, Rohan’s mother was four times as old as Rohan. The mother is 26 years old now. How old is Rohan now?
  20. 20.In 13 years, Pooja will be twice as old as Pooja was 3 years ago. How old is Pooja now?
  21. 21.Ishaan is 2 years older than Manav. In 6 years, the sum of their ages will be 54. How old is Manav now?
  22. 22.A pressure cooker bought for ₹220 is sold at a loss of 40%. What is the selling price (in ₹)?
  23. 23.A water tank holds 4460 litres. 5% of the water is used. How many litres are left?
  24. 24.The price of a bicycle is ₹3860. It goes up by 50%. What is the new price (in ₹)?
  25. 25.The average of 9 numbers is 58. When one more number is added, the average becomes 63. What number was added?
  26. 26.A water tank holds 320 litres. 30% of the water is used. How many litres are left?
  27. 27.Saanvi works twice as fast as Nisha. Together they finish a job in 11 days. How many days would Nisha take alone?
  28. 28.In 3 years, Farhan will be three times as old as Farhan was 5 years ago. How old is Farhan now?
  29. 29.Karan’s batting average after 10 innings is 26 runs. How many runs must Karan score in the next innings to raise the average to 29?
  30. 30.The average weight of 9 children is 38 kg. One child, who weighs 62 kg, leaves the group. What is the new average weight (in kg)?
  31. 31.A pair of shoes marked at ₹4260 is sold for ₹3408. What is the discount percent?
  32. 32.Find the compound interest on ₹46875 at 8% per year for 3 years, added every year (in ₹).
  33. 33.A watch marked at ₹5000 is sold for ₹4250. What is the discount percent?
  34. 34.A watch is marked at ₹500. The shop takes 20% off, and then a further 20% off the new price. How much do you pay (in ₹)?
  35. 35.Dev is 9 years older than Isha. In 5 years, the sum of their ages will be 69. How old is Isha now?
  36. 36.The price of a school bag changes from ₹1880 to ₹2632. By what percent did it go up?
  37. 37.Tara is 7 years older than Pooja. In 3 years, the sum of their ages will be 27. How old is Pooja now?
  38. 38.Rahul can finish a job in 8 days and Priya in 7 days. What fraction of the job do they finish if they work together for 3 days? =
  39. 39.Nisha’s father is three times as old as Nisha. The sum of their ages is 48 years. How old is Nisha?
  40. 40.A pair of shoes is marked at ₹4620. The shop gives a 40% discount. How much do you pay (in ₹)?

Answer key

  1. 32
  2. 47
  3. 11700
  4. 51
  5. 10
  6. 1704
  7. 2200
  8. 2700
  9. 42
  10. 3
  11. 220
  12. 430
  13. 25
  14. 62.5
  15. 26
  16. 18981
  17. 3151
  18. 8217
  19. 14
  20. 19
  21. 20
  22. 132
  23. 4237
  24. 5790
  25. 108
  26. 224
  27. 33
  28. 9
  29. 59
  30. 35
  31. 20
  32. 12174
  33. 15
  34. 320
  35. 25
  36. 40
  37. 7
  38. 45/56
  39. 12
  40. 2772

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