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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 491 · 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. 1.50% of a number is 180. What is the number?
  2. 2.28 is 10% of ?
  3. 3.25% of a number is 73. What is the number?
  4. 4.17 is 5% of ?
  5. 5.60% of a number is 147. What is the number?
  6. 6.Meera spent ₹76, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  7. 7.Riya spent ₹114, which is 30% of the pocket money. How much pocket money did Riya have, in rupees?
  8. 8.80% of a number is 88. What is the number?
  9. 9.32 is 10% of ?
  10. 10.32 is 20% of ?
  11. 11.Rohan spent ₹186, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  12. 12.15 is 15% of ?
  13. 13.Isha spent ₹30, which is 10% of the pocket money. How much pocket money did Isha have, in rupees?
  14. 14.15% of a number is 54. What is the number?
  15. 15.10% of a number is 13. What is the number?
  16. 16.30% of a number is 57. What is the number?
  17. 17.243 is 75% of ?
  18. 18.60% of a number is 132. What is the number?
  19. 19.Ishaan spent ₹30, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  20. 20.Riya spent ₹74, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  21. 21.60% of a number is 24. What is the number?
  22. 22.18 is 15% of ?
  23. 23.Ishaan spent ₹43, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  24. 24.240 is 75% of ?
  25. 25.60% of a number is 201. What is the number?
  26. 26.147 is 60% of ?
  27. 27.39 is 10% of ?
  28. 28.30% of a number is 72. What is the number?
  29. 29.Kabir spent ₹102, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  30. 30.Kabir spent ₹14, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  31. 31.Sara spent ₹300, which is 75% of the pocket money. How much pocket money did Sara have, in rupees?
  32. 32.Arjun spent ₹69, which is 60% of the pocket money. How much pocket money did Arjun have, in rupees?
  33. 33.60% of a number is 45. What is the number?
  34. 34.20% of a number is 9. What is the number?
  35. 35.5% of a number is 3. What is the number?
  36. 36.30% of a number is 30. What is the number?
  37. 37.Sara spent ₹187, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  38. 38.38 is 50% of ?
  39. 39.80% of a number is 124. What is the number?
  40. 40.171 is 75% of ?

Answer key

  1. 360
  2. 280
  3. 292
  4. 340
  5. 245
  6. 380
  7. 380
  8. 110
  9. 320
  10. 160
  11. 248
  12. 100
  13. 300
  14. 360
  15. 130
  16. 190
  17. 324
  18. 220
  19. 120
  20. 370
  21. 40
  22. 120
  23. 172
  24. 320
  25. 335
  26. 245
  27. 390
  28. 240
  29. 136
  30. 280
  31. 400
  32. 115
  33. 75
  34. 45
  35. 60
  36. 100
  37. 374
  38. 76
  39. 155
  40. 228

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