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Percentage lesson 9: Find the whole from a percent · Set 425 · 40 questions
TalentJR

How to work it out (Back to 100%): Write what you know: p% is a. The whole (100%) = a × 100 ÷ p. Check: p% of your answer must give a back.

NameDateTime takenScore ___ / 40
  1. 1.Aarav spent ₹24, which is 75% of the pocket money. How much pocket money did Aarav have, in rupees?
  2. 2.41 is 20% of ?
  3. 3.Isha spent ₹4, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  4. 4.18 is 15% of ?
  5. 5.75% of a number is 297. What is the number?
  6. 6.72 is 80% of ?
  7. 7.9 is 25% of ?
  8. 8.30% of a number is 6. What is the number?
  9. 9.Riya spent ₹3, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  10. 10.20 is 20% of ?
  11. 11.252 is 80% of ?
  12. 12.108 is 80% of ?
  13. 13.25% of a number is 27. What is the number?
  14. 14.Aarav spent ₹14, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  15. 15.Dev spent ₹12, which is 40% of the pocket money. How much pocket money did Dev have, in rupees?
  16. 16.Sara spent ₹84, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  17. 17.15% of a number is 3. What is the number?
  18. 18.15% of a number is 54. What is the number?
  19. 19.25% of a number is 7. What is the number?
  20. 20.4 is 5% of ?
  21. 21.Kabir spent ₹84, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  22. 22.105 is 30% of ?
  23. 23.6 is 15% of ?
  24. 24.75% of a number is 39. What is the number?
  25. 25.75% of a number is 267. What is the number?
  26. 26.Arjun spent ₹33, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  27. 27.Ishaan spent ₹51, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  28. 28.1 is 10% of ?
  29. 29.5% of a number is 12. What is the number?
  30. 30.3 is 25% of ?
  31. 31.5% of a number is 2. What is the number?
  32. 32.Kabir spent ₹24, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  33. 33.30 is 12% of ?
  34. 34.12% of a number is 48. What is the number?
  35. 35.10% of a number is 8. What is the number?
  36. 36.24 is 12% of ?
  37. 37.75% of a number is 195. What is the number?
  38. 38.60% of a number is 69. What is the number?
  39. 39.80% of a number is 240. What is the number?
  40. 40.Rohan spent ₹58, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?

Answer key

  1. 32
  2. 205
  3. 80
  4. 120
  5. 396
  6. 90
  7. 36
  8. 20
  9. 60
  10. 100
  11. 315
  12. 135
  13. 108
  14. 280
  15. 30
  16. 280
  17. 20
  18. 360
  19. 28
  20. 80
  21. 105
  22. 350
  23. 40
  24. 52
  25. 356
  26. 110
  27. 340
  28. 10
  29. 240
  30. 12
  31. 40
  32. 160
  33. 250
  34. 400
  35. 80
  36. 200
  37. 260
  38. 115
  39. 300
  40. 290

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