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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 144 · 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% of a number is 2. What is the number?
  2. 2.36 is 12% of ?
  3. 3.15 is 5% of ?
  4. 4.186 is 50% of ?
  5. 5.21 is 20% of ?
  6. 6.9 is 5% of ?
  7. 7.20% of a number is 9. What is the number?
  8. 8.60% of a number is 3. What is the number?
  9. 9.68 is 80% of ?
  10. 10.19 is 5% of ?
  11. 11.31 is 25% of ?
  12. 12.42 is 40% of ?
  13. 13.5 is 20% of ?
  14. 14.Sara spent ₹63, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  15. 15.204 is 80% of ?
  16. 16.69 is 30% of ?
  17. 17.50% of a number is 139. What is the number?
  18. 18.Meera spent ₹73, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  19. 19.18 is 10% of ?
  20. 20.40% of a number is 134. What is the number?
  21. 21.40% of a number is 68. What is the number?
  22. 22.78 is 60% of ?
  23. 23.172 is 50% of ?
  24. 24.Kabir spent ₹153, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  25. 25.39 is 15% of ?
  26. 26.40% of a number is 152. What is the number?
  27. 27.10% of a number is 13. What is the number?
  28. 28.75% of a number is 24. What is the number?
  29. 29.Meera spent ₹62, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  30. 30.5% of a number is 18. What is the number?
  31. 31.Riya spent ₹3, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  32. 32.80% of a number is 60. What is the number?
  33. 33.Riya spent ₹17, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  34. 34.Riya spent ₹93, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  35. 35.Meera spent ₹200, which is 80% of the pocket money. How much pocket money did Meera have, in rupees?
  36. 36.73 is 20% of ?
  37. 37.3 is 10% of ?
  38. 38.39 is 60% of ?
  39. 39.28 is 80% of ?
  40. 40.Riya spent ₹12, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?

Answer key

  1. 40
  2. 300
  3. 300
  4. 372
  5. 105
  6. 180
  7. 45
  8. 5
  9. 85
  10. 380
  11. 124
  12. 105
  13. 25
  14. 105
  15. 255
  16. 230
  17. 278
  18. 292
  19. 180
  20. 335
  21. 170
  22. 130
  23. 344
  24. 204
  25. 260
  26. 380
  27. 130
  28. 32
  29. 310
  30. 360
  31. 20
  32. 75
  33. 68
  34. 124
  35. 250
  36. 365
  37. 30
  38. 65
  39. 35
  40. 100

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