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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 439 · 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.Kavya’s father is twice as old as Kavya. The sum of their ages is 27 years. How old is Kavya?
  2. 2.A pressure cooker is marked at ₹475. The shop takes 10% off, and then a further 20% off the new price. How much do you pay (in ₹)?
  3. 3.2 years ago, Ananya’s mother was twice as old as Ananya. The mother is 16 years old now. How old is Ananya now?
  4. 4.By selling a bicycle for ₹896, a shopkeeper makes a loss of 20%. What did the bicycle cost the shopkeeper (in ₹)?
  5. 5.The average weight of 10 children is 26 kg. One child, who weighs 35 kg, leaves the group. What is the new average weight (in kg)?
  6. 6.A water tank holds 2320 litres. 20% of the water is used. How many litres are left?
  7. 7.By selling a cricket bat for ₹345, a shopkeeper makes a loss of 25%. What did the cricket bat cost the shopkeeper (in ₹)?
  8. 8.A water tank holds 3900 litres. 50% of the water is used. How many litres are left?
  9. 9.In how many years will ₹7400 earn ₹2072 as simple interest at 7% per year?
  10. 10.Two discounts of 20% and 20%, one after the other, are the same as one discount of what percent? =
  11. 11.Meera is 2 years older than Karan. In 6 years, the sum of their ages will be 52. How old is Karan now?
  12. 12.Zoya can finish a job in 4 days and Rohan in 16 days. Zoya works alone for 1 day and then stops. Rohan finishes the rest. How many days does Rohan take?
  13. 13.A bicycle is marked at ₹2460. The shop gives a 30% discount. How much do you pay (in ₹)?
  14. 14.A shopkeeper buys a bicycle for ₹100 and sells it for ₹130. Find the profit percent.
  15. 15.Dev and Rohan together finish a job in 12 days. Dev alone takes 30 days. How many days would Rohan take alone?
  16. 16.In how many years will ₹11000 earn ₹660 as simple interest at 3% per year?
  17. 17.A price comes down by 5% and then comes down by 50% more. By what percent has it come down in all? =
  18. 18.Change 20 m/s into km/h.
  19. 19.In 28 years, Saanvi will be twice as old as Saanvi was 5 years ago. How old is Saanvi now?
  20. 20.The simple interest on ₹17500 for 1 year is ₹1400. What is the rate of interest (% per year)?
  21. 21.The price of a school bag changes from ₹4720 to ₹5192. By what percent did it go up?
  22. 22.9 years ago, Dev’s mother was twice as old as Dev. The mother is 19 years old now. How old is Dev now?
  23. 23.In how many years will ₹14800 earn ₹7696 as simple interest at 13% per year?
  24. 24.A bicycle marked at ₹1760 is sold for ₹880. What is the discount percent?
  25. 25.In 10 years, Arjun will be three times as old as Arjun was 2 years ago. How old is Arjun now?
  26. 26.Arjun’s father is four times as old as Arjun. The sum of their ages is 50 years. How old is Arjun?
  27. 27.A pair of shoes marked at ₹1060 is sold for ₹1007. What is the discount percent?
  28. 28.The price of a bicycle is ₹2280. It goes up by 50%. What is the new price (in ₹)?
  29. 29.In how many years will ₹900 earn ₹315 as simple interest at 7% per year?
  30. 30.A shopkeeper buys a watch for ₹820 and sells it for ₹738. Find the loss percent.
  31. 31.A car runs for 3 hours at 71 km/h and then for 3 hours at 39 km/h. What is its average speed for the whole journey (in km/h)?
  32. 32.A car runs for 4 hours at 38 km/h and then for 3 hours at 45 km/h. What is its average speed for the whole journey (in km/h)?
  33. 33.Find the compound interest on ₹11000 at 10% per year for 3 years, added every year (in ₹).
  34. 34.Zoya is 5 years older than Ishaan. In 9 years, the sum of their ages will be 65. How old is Ishaan now?
  35. 35.The price of a school bag changes from ₹4000 to ₹3800. By what percent did it come down?
  36. 36.Marks of 4 friends in a quiz: 12, 41, 41, 10. What is their average mark?
  37. 37.A car runs for 1 hour at 57 km/h and then for 3 hours at 61 km/h. What is its average speed for the whole journey (in km/h)?
  38. 38.A shop sells 4440 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  39. 39.The average of 6 numbers is 32. When one more number is added, the average becomes 35. What number was added?
  40. 40.The average of 4 numbers is 43. When one more number is added, the average becomes 49. What number was added?

Answer key

  1. 9
  2. 342
  3. 9
  4. 1120
  5. 25
  6. 1856
  7. 460
  8. 1950
  9. 4
  10. 36
  11. 19
  12. 12
  13. 1722
  14. 30
  15. 20
  16. 2
  17. 52.5
  18. 72
  19. 38
  20. 8
  21. 10
  22. 14
  23. 4
  24. 50
  25. 8
  26. 10
  27. 5
  28. 3420
  29. 5
  30. 10
  31. 55
  32. 41
  33. 3641
  34. 21
  35. 5
  36. 26
  37. 60
  38. 5550
  39. 53
  40. 73

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