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Everyday Maths Practice Worksheet

Quantitative aptitude lesson 20: Practice: everyday maths · Set 357 · 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.After a 40% discount, a pair of shoes costs ₹1848. What was its marked price (in ₹)?
  2. 2.A water tank holds 1420 litres. 15% of the water is used. How many litres are left?
  3. 3.In how many years will ₹15700 earn ₹1570 as simple interest at 10% per year?
  4. 4.Marks of 4 friends in a quiz: 56, 82, 79, 63. What is their average mark?
  5. 5.How many minutes does a car take to go 149 km at 30 km/h?
  6. 6.A study lamp is marked at ₹784. The shop takes 25% off, and then a further 25% off the new price. How much do you pay (in ₹)?
  7. 7.In how many years will ₹13300 earn ₹5985 as simple interest at 15% per year?
  8. 8.How many minutes does a car take to go 78 km at 60 km/h?
  9. 9.By selling a cricket bat for ₹180, a shopkeeper makes a profit of 50%. What did the cricket bat cost the shopkeeper (in ₹)?
  10. 10.What is the difference between the compound interest and the simple interest on ₹27500 at 4% per year for 2 years (in ₹)?
  11. 11.A bus runs at 62 km/h. How far does it go in 30 minutes (in km)?
  12. 12.Marks of 6 friends in a quiz: 74, 90, 78, 86, 100, 82. What is their average mark?
  13. 13.By selling a cricket bat for ₹200, a shopkeeper makes a loss of 50%. What did the cricket bat cost the shopkeeper (in ₹)?
  14. 14.A study lamp marked at ₹200 is sold for ₹180. What is the discount percent?
  15. 15.The price of a school bag changes from ₹1800 to ₹2250. By what percent did it go up?
  16. 16.Kabir and Vivaan together finish a job in 2 days. Kabir alone takes 4 days. How many days would Vivaan take alone?
  17. 17.By selling a school bag for ₹50, a shopkeeper makes a loss of 50%. What did the school bag cost the shopkeeper (in ₹)?
  18. 18.A shopkeeper buys a pair of shoes for ₹1920 and sells it for ₹1728. Find the loss percent.
  19. 19.A table fan marked at ₹4240 is sold for ₹2544. What is the discount percent?
  20. 20.A pressure cooker is marked at ₹2140. The shop gives a 30% discount. How much do you pay (in ₹)?
  21. 21.Find the simple interest on ₹13800 at 5% per year for 1 year (in ₹).
  22. 22.Find the compound interest on ₹10560 at 25% per year for 3 years, added every year (in ₹).
  23. 23.Tara’s father is four times as old as Tara. The sum of their ages is 25 years. How old is the father?
  24. 24.A school bag is marked at ₹4740. The shop gives a 25% discount. How much do you pay (in ₹)?
  25. 25.Two discounts of 10% and 50%, one after the other, are the same as one discount of what percent? =
  26. 26.Find the amount when ₹20625 is invested at 4% per year compound interest for 2 years (in ₹).
  27. 27.The simple interest on ₹8800 for 2 years is ₹704. What is the rate of interest (% per year)?
  28. 28.Zoya’s father is twice as old as Zoya. The sum of their ages is 30 years. How old is the father?
  29. 29.What is the difference between the compound interest and the simple interest on ₹16000 at 15% per year for 2 years (in ₹)?
  30. 30.A shopkeeper buys a school bag for ₹1380 and sells it for ₹1242. Find the loss percent.
  31. 31.By selling a bicycle for ₹570, a shopkeeper makes a profit of 50%. What did the bicycle cost the shopkeeper (in ₹)?
  32. 32.Ishaan’s father is four times as old as Ishaan. The sum of their ages is 60 years. How old is the father?
  33. 33.By selling a pressure cooker for ₹1239, a shopkeeper makes a profit of 5%. What did the pressure cooker cost the shopkeeper (in ₹)?
  34. 34.In how many years will ₹11500 earn ₹3680 as simple interest at 8% per year?
  35. 35.Ananya’s father is twice as old as Ananya. The sum of their ages is 36 years. How old is Ananya?
  36. 36.Kabir cycles to his school at 18 km/h and comes back by the same road at 90 km/h. What is his average speed for the whole trip (in km/h)?
  37. 37.A bicycle marked at ₹1840 is sold for ₹1288. What is the discount percent?
  38. 38.Diya can finish a job in 13 days and Manav in 14 days. How many days will they take working together? Give a fraction if the answer is not a whole number. =
  39. 39.Find the simple interest on ₹2800 at 7% per year for 3 years (in ₹).
  40. 40.Rohan works three times as fast as Kabir. Together they finish a job in 5 days. How many days would Kabir take alone?

Answer key

  1. 3080
  2. 1207
  3. 1
  4. 70
  5. 298
  6. 441
  7. 3
  8. 78
  9. 120
  10. 44
  11. 31
  12. 85
  13. 400
  14. 10
  15. 25
  16. 4
  17. 100
  18. 10
  19. 40
  20. 1498
  21. 690
  22. 10065
  23. 20
  24. 3555
  25. 55
  26. 22308
  27. 4
  28. 20
  29. 360
  30. 10
  31. 380
  32. 48
  33. 1180
  34. 4
  35. 12
  36. 30
  37. 30
  38. 182/27
  39. 588
  40. 20

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