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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 496 · 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. 1.75% of a number is 204. What is the number?
  2. 2.75% of a number is 210. What is the number?
  3. 3.108 is 80% of ?
  4. 4.20% of a number is 15. What is the number?
  5. 5.10% of a number is 5. What is the number?
  6. 6.39 is 25% of ?
  7. 7.60% of a number is 60. What is the number?
  8. 8.114 is 50% of ?
  9. 9.19 is 5% of ?
  10. 10.Diya spent ₹10, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  11. 11.30% of a number is 51. What is the number?
  12. 12.4 is 20% of ?
  13. 13.25% of a number is 71. What is the number?
  14. 14.Diya spent ₹114, which is 30% of the pocket money. How much pocket money did Diya have, in rupees?
  15. 15.Riya spent ₹19, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  16. 16.48 is 12% of ?
  17. 17.Riya spent ₹108, which is 80% of the pocket money. How much pocket money did Riya have, in rupees?
  18. 18.50% of a number is 190. What is the number?
  19. 19.Meera spent ₹19, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  20. 20.25% of a number is 6. What is the number?
  21. 21.25% of a number is 27. What is the number?
  22. 22.25% of a number is 66. What is the number?
  23. 23.38 is 10% of ?
  24. 24.56 is 25% of ?
  25. 25.Sara spent ₹255, which is 75% of the pocket money. How much pocket money did Sara have, in rupees?
  26. 26.3 is 50% of ?
  27. 27.10% of a number is 36. What is the number?
  28. 28.Aarav spent ₹156, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  29. 29.80% of a number is 20. What is the number?
  30. 30.30% of a number is 3. What is the number?
  31. 31.60% of a number is 165. What is the number?
  32. 32.10% of a number is 14. What is the number?
  33. 33.Ishaan spent ₹54, which is 60% of the pocket money. How much pocket money did Ishaan have, in rupees?
  34. 34.Isha spent ₹18, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  35. 35.3 is 5% of ?
  36. 36.Sara spent ₹171, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  37. 37.Kabir spent ₹12, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  38. 38.12 is 12% of ?
  39. 39.36 is 15% of ?
  40. 40.8 is 10% of ?

Answer key

  1. 272
  2. 280
  3. 135
  4. 75
  5. 50
  6. 156
  7. 100
  8. 228
  9. 380
  10. 50
  11. 170
  12. 20
  13. 284
  14. 380
  15. 190
  16. 400
  17. 135
  18. 380
  19. 76
  20. 24
  21. 108
  22. 264
  23. 380
  24. 224
  25. 340
  26. 6
  27. 360
  28. 195
  29. 25
  30. 10
  31. 275
  32. 140
  33. 90
  34. 90
  35. 60
  36. 285
  37. 80
  38. 100
  39. 240
  40. 80

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