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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 375 · 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. 1.87 is 60% of ?
  2. 2.177 is 60% of ?
  3. 3.13 is 20% of ?
  4. 4.28 is 20% of ?
  5. 5.30 is 12% of ?
  6. 6.60 is 15% of ?
  7. 7.7 is 20% of ?
  8. 8.Dev spent ₹42, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  9. 9.80% of a number is 312. What is the number?
  10. 10.7 is 5% of ?
  11. 11.Meera spent ₹123, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?
  12. 12.25% of a number is 48. What is the number?
  13. 13.31 is 50% of ?
  14. 14.Sara spent ₹22, which is 40% of the pocket money. How much pocket money did Sara have, in rupees?
  15. 15.Riya spent ₹54, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  16. 16.192 is 80% of ?
  17. 17.Aarav spent ₹15, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  18. 18.46 is 20% of ?
  19. 19.Sara spent ₹120, which is 75% of the pocket money. How much pocket money did Sara have, in rupees?
  20. 20.Aarav spent ₹177, which is 60% of the pocket money. How much pocket money did Aarav have, in rupees?
  21. 21.49 is 25% of ?
  22. 22.12% of a number is 3. What is the number?
  23. 23.13 is 5% of ?
  24. 24.Meera spent ₹27, which is 15% of the pocket money. How much pocket money did Meera have, in rupees?
  25. 25.Rohan spent ₹69, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  26. 26.Aarav spent ₹42, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  27. 27.80% of a number is 164. What is the number?
  28. 28.15% of a number is 42. What is the number?
  29. 29.20% of a number is 12. What is the number?
  30. 30.15% of a number is 24. What is the number?
  31. 31.50% of a number is 126. What is the number?
  32. 32.10% of a number is 29. What is the number?
  33. 33.33 is 12% of ?
  34. 34.2 is 10% of ?
  35. 35.Meera spent ₹22, which is 10% of the pocket money. How much pocket money did Meera have, in rupees?
  36. 36.20% of a number is 13. What is the number?
  37. 37.30% of a number is 66. What is the number?
  38. 38.75% of a number is 51. What is the number?
  39. 39.104 is 40% of ?
  40. 40.15% of a number is 39. What is the number?

Answer key

  1. 145
  2. 295
  3. 65
  4. 140
  5. 250
  6. 400
  7. 35
  8. 350
  9. 390
  10. 140
  11. 205
  12. 192
  13. 62
  14. 55
  15. 108
  16. 240
  17. 300
  18. 230
  19. 160
  20. 295
  21. 196
  22. 25
  23. 260
  24. 180
  25. 276
  26. 210
  27. 205
  28. 280
  29. 60
  30. 160
  31. 252
  32. 290
  33. 275
  34. 20
  35. 220
  36. 65
  37. 220
  38. 68
  39. 260
  40. 260

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