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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 508 · 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. 1.40% of a number is 8. What is the number?
  2. 2.15% of a number is 30. What is the number?
  3. 3.4 is 5% of ?
  4. 4.10% of a number is 18. What is the number?
  5. 5.44 is 25% of ?
  6. 6.10% of a number is 15. What is the number?
  7. 7.Aarav spent ₹36, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  8. 8.Ishaan spent ₹5, which is 5% of the pocket money. How much pocket money did Ishaan have, in rupees?
  9. 9.Ishaan spent ₹12, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  10. 10.6 is 15% of ?
  11. 11.30% of a number is 72. What is the number?
  12. 12.3 is 30% of ?
  13. 13.75 is 75% of ?
  14. 14.Arjun spent ₹6, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  15. 15.60% of a number is 231. What is the number?
  16. 16.Meera spent ₹135, which is 75% of the pocket money. How much pocket money did Meera have, in rupees?
  17. 17.31 is 10% of ?
  18. 18.Rohan spent ₹264, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  19. 19.30% of a number is 51. What is the number?
  20. 20.Rohan spent ₹4, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  21. 21.12% of a number is 24. What is the number?
  22. 22.276 is 80% of ?
  23. 23.Aarav spent ₹14, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  24. 24.7 is 10% of ?
  25. 25.80% of a number is 232. What is the number?
  26. 26.15 is 30% of ?
  27. 27.158 is 50% of ?
  28. 28.Kabir spent ₹50, which is 40% of the pocket money. How much pocket money did Kabir have, in rupees?
  29. 29.50% of a number is 34. What is the number?
  30. 30.228 is 75% of ?
  31. 31.6 is 30% of ?
  32. 32.Isha spent ₹60, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  33. 33.80% of a number is 184. What is the number?
  34. 34.30% of a number is 6. What is the number?
  35. 35.Aarav spent ₹21, which is 12% of the pocket money. How much pocket money did Aarav have, in rupees?
  36. 36.12% of a number is 42. What is the number?
  37. 37.30% of a number is 120. What is the number?
  38. 38.75% of a number is 90. What is the number?
  39. 39.50% of a number is 191. What is the number?
  40. 40.81 is 60% of ?

Answer key

  1. 20
  2. 200
  3. 80
  4. 180
  5. 176
  6. 150
  7. 180
  8. 100
  9. 80
  10. 40
  11. 240
  12. 10
  13. 100
  14. 60
  15. 385
  16. 180
  17. 310
  18. 330
  19. 170
  20. 80
  21. 200
  22. 345
  23. 56
  24. 70
  25. 290
  26. 50
  27. 316
  28. 125
  29. 68
  30. 304
  31. 20
  32. 120
  33. 230
  34. 20
  35. 175
  36. 350
  37. 400
  38. 120
  39. 382
  40. 135

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