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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 723 · 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. 1.5 is 5% of ?
  2. 2.40% of a number is 54. What is the number?
  3. 3.14 is 5% of ?
  4. 4.12% of a number is 24. What is the number?
  5. 5.Meera spent ₹71, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  6. 6.11 is 20% of ?
  7. 7.15% of a number is 9. What is the number?
  8. 8.Sara spent ₹72, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  9. 9.52 is 20% of ?
  10. 10.15% of a number is 60. What is the number?
  11. 11.99 is 30% of ?
  12. 12.12% of a number is 18. What is the number?
  13. 13.10% of a number is 1. What is the number?
  14. 14.12% of a number is 48. What is the number?
  15. 15.56 is 50% of ?
  16. 16.3 is 5% of ?
  17. 17.25% of a number is 39. What is the number?
  18. 18.13 is 25% of ?
  19. 19.Rohan spent ₹72, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  20. 20.32 is 20% of ?
  21. 21.75% of a number is 204. What is the number?
  22. 22.Kabir spent ₹32, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  23. 23.5% of a number is 4. What is the number?
  24. 24.40% of a number is 12. What is the number?
  25. 25.19 is 5% of ?
  26. 26.Meera spent ₹39, which is 10% of the pocket money. How much pocket money did Meera have, in rupees?
  27. 27.Dev spent ₹66, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?
  28. 28.Kabir spent ₹100, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  29. 29.Riya spent ₹30, which is 60% of the pocket money. How much pocket money did Riya have, in rupees?
  30. 30.Isha spent ₹39, which is 12% of the pocket money. How much pocket money did Isha have, in rupees?
  31. 31.Meera spent ₹4, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  32. 32.20% of a number is 79. What is the number?
  33. 33.25% of a number is 71. What is the number?
  34. 34.2 is 50% of ?
  35. 35.15% of a number is 57. What is the number?
  36. 36.40% of a number is 2. What is the number?
  37. 37.80% of a number is 232. What is the number?
  38. 38.75% of a number is 27. What is the number?
  39. 39.80% of a number is 236. What is the number?
  40. 40.5% of a number is 2. What is the number?

Answer key

  1. 100
  2. 135
  3. 280
  4. 200
  5. 284
  6. 55
  7. 60
  8. 360
  9. 260
  10. 400
  11. 330
  12. 150
  13. 10
  14. 400
  15. 112
  16. 60
  17. 156
  18. 52
  19. 96
  20. 160
  21. 272
  22. 160
  23. 80
  24. 30
  25. 380
  26. 390
  27. 110
  28. 125
  29. 50
  30. 325
  31. 8
  32. 395
  33. 284
  34. 4
  35. 380
  36. 5
  37. 290
  38. 36
  39. 295
  40. 40

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