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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 788 · 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.A cricket bat is marked at ₹585. The shop takes 20% off, and then a further 50% off the new price. How much do you pay (in ₹)?
  2. 2.What sum of money earns ₹957 simple interest in 1 year at 11% per year (in ₹)?
  3. 3.By selling a watch for ₹1365, a shopkeeper makes a loss of 25%. What did the watch cost the shopkeeper (in ₹)?
  4. 4.Marks of 6 friends in a quiz: 46, 29, 31, 30, 49, 79. What is their average mark?
  5. 5.By selling a study lamp for ₹1824, a shopkeeper makes a profit of 20%. What did the study lamp cost the shopkeeper (in ₹)?
  6. 6.Meera’s batting average after 6 innings is 20 runs. How many runs must Meera score in the next innings to raise the average to 24?
  7. 7.In 7 years, Aarav will be three times as old as Aarav was 5 years ago. How old is Aarav now?
  8. 8.A shopkeeper buys a pressure cooker for ₹580 and sells it for ₹551. Find the loss percent.
  9. 9.Ananya can finish a job in 6 days and Aarav in 30 days. Ananya works alone for 1 day and then stops. Aarav finishes the rest. How many days does Aarav take?
  10. 10.A bus runs at 84 km/h. How far does it go in 30 minutes (in km)?
  11. 11.A bus runs at 20 km/h. How far does it go in 15 minutes (in km)?
  12. 12.A shop sells 3460 cups of tea a month. Next month it sells 25% more. How many cups does it sell next month?
  13. 13.The price of a school bag changes from ₹4920 to ₹4182. By what percent did it come down?
  14. 14.Find the simple interest on ₹1500 at 11% per year for 2 years (in ₹).
  15. 15.Marks of 4 friends in a quiz: 79, 89, 78, 98. What is their average mark?
  16. 16.A pressure cooker bought for ₹340 is sold at a loss of 30%. What is the selling price (in ₹)?
  17. 17.A pressure cooker is marked at ₹1540. The shop gives a 15% discount. How much do you pay (in ₹)?
  18. 18.A water tank holds 4700 litres. 20% of the water is used. How many litres are left?
  19. 19.Rahul and Manav together finish a job in 12 days. Rahul alone takes 18 days. How many days would Manav take alone?
  20. 20.The average weight of 7 children is 44 kg. One child, who weighs 50 kg, leaves the group. What is the new average weight (in kg)?
  21. 21.A car runs for 2 hours at 77 km/h and then for 2 hours at 25 km/h. What is its average speed for the whole journey (in km/h)?
  22. 22.The price of a school bag changes from ₹3040 to ₹3648. By what percent did it go up?
  23. 23.Tara and Nisha together finish a job in 4 days. Tara alone takes 6 days. How many days would Nisha take alone?
  24. 24.Rahul’s father is twice as old as Rahul. The sum of their ages is 21 years. How old is Rahul?
  25. 25.A school bag bought for ₹340 is sold at a loss of 25%. What is the selling price (in ₹)?
  26. 26.Priya is 7 years older than Kabir. In 10 years, the sum of their ages will be 51. How old is Kabir now?
  27. 27.Karan is 7 years older than Sneha. In 8 years, the sum of their ages will be 61. How old is Sneha now?
  28. 28.The price of a bicycle is ₹1900. It goes up by 20%. What is the new price (in ₹)?
  29. 29.A shopkeeper buys a watch for ₹520 and sells it for ₹442. Find the loss percent.
  30. 30.Find the simple interest on ₹4900 at 10% per year for 1 year (in ₹).
  31. 31.Two discounts of 50% and 50%, one after the other, are the same as one discount of what percent? =
  32. 32.By selling a cricket bat for ₹1148, a shopkeeper makes a profit of 40%. What did the cricket bat cost the shopkeeper (in ₹)?
  33. 33.In how many years will ₹20000 earn ₹5400 as simple interest at 9% per year?
  34. 34.Find the amount when ₹43750 is invested at 4% per year compound interest for 2 years (in ₹).
  35. 35.Find the simple interest on ₹19200 at 13% per year for 3 years (in ₹).
  36. 36.The average weight of 7 children is 33 kg. One child, who weighs 39 kg, leaves the group. What is the new average weight (in kg)?
  37. 37.Two discounts of 25% and 20%, one after the other, are the same as one discount of what percent? =
  38. 38.Two discounts of 25% and 50%, one after the other, are the same as one discount of what percent? =
  39. 39.A cricket bat is marked at ₹940. The shop gives a 20% discount. How much do you pay (in ₹)?
  40. 40.A water tank holds 3720 litres. 10% of the water is used. How many litres are left?

Answer key

  1. 234
  2. 8700
  3. 1820
  4. 44
  5. 1520
  6. 48
  7. 11
  8. 5
  9. 25
  10. 42
  11. 5
  12. 4325
  13. 15
  14. 330
  15. 86
  16. 238
  17. 1309
  18. 3760
  19. 36
  20. 43
  21. 51
  22. 20
  23. 12
  24. 7
  25. 255
  26. 12
  27. 19
  28. 2280
  29. 15
  30. 490
  31. 75
  32. 820
  33. 3
  34. 47320
  35. 7488
  36. 32
  37. 40
  38. 62.5
  39. 752
  40. 3348

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