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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 220 · 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. 1.60% of a number is 75. What is the number?
  2. 2.40% of a number is 70. What is the number?
  3. 3.126 is 75% of ?
  4. 4.60% of a number is 156. What is the number?
  5. 5.Sara spent ₹81, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  6. 6.36 is 10% of ?
  7. 7.Isha spent ₹21, which is 30% of the pocket money. How much pocket money did Isha have, in rupees?
  8. 8.7 is 10% of ?
  9. 9.6 is 15% of ?
  10. 10.17 is 10% of ?
  11. 11.50% of a number is 37. What is the number?
  12. 12.30% of a number is 111. What is the number?
  13. 13.19 is 5% of ?
  14. 14.51 is 30% of ?
  15. 15.25% of a number is 66. What is the number?
  16. 16.15 is 25% of ?
  17. 17.4 is 5% of ?
  18. 18.Isha spent ₹16, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  19. 19.69 is 25% of ?
  20. 20.70 is 40% of ?
  21. 21.7 is 5% of ?
  22. 22.10% of a number is 29. What is the number?
  23. 23.Kabir spent ₹84, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  24. 24.Sara spent ₹117, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  25. 25.25% of a number is 19. What is the number?
  26. 26.12% of a number is 39. What is the number?
  27. 27.12% of a number is 15. What is the number?
  28. 28.Arjun spent ₹41, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  29. 29.20% of a number is 23. What is the number?
  30. 30.60 is 30% of ?
  31. 31.30% of a number is 57. What is the number?
  32. 32.125 is 50% of ?
  33. 33.90 is 40% of ?
  34. 34.Aarav spent ₹22, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  35. 35.72 is 20% of ?
  36. 36.24 is 10% of ?
  37. 37.20% of a number is 50. What is the number?
  38. 38.Ishaan spent ₹12, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  39. 39.10% of a number is 16. What is the number?
  40. 40.40% of a number is 68. What is the number?

Answer key

  1. 125
  2. 175
  3. 168
  4. 260
  5. 270
  6. 360
  7. 70
  8. 70
  9. 40
  10. 170
  11. 74
  12. 370
  13. 380
  14. 170
  15. 264
  16. 60
  17. 80
  18. 32
  19. 276
  20. 175
  21. 140
  22. 290
  23. 105
  24. 390
  25. 76
  26. 325
  27. 125
  28. 205
  29. 115
  30. 200
  31. 190
  32. 250
  33. 225
  34. 220
  35. 360
  36. 240
  37. 250
  38. 80
  39. 160
  40. 170

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