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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 525 · 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. 1.5% of a number is 15. What is the number?
  2. 2.57 is 25% of ?
  3. 3.Dev spent ₹40, which is 40% of the pocket money. How much pocket money did Dev have, in rupees?
  4. 4.99 is 50% of ?
  5. 5.25% of a number is 41. What is the number?
  6. 6.Kabir spent ₹6, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  7. 7.Meera spent ₹48, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?
  8. 8.Ishaan spent ₹2, which is 5% of the pocket money. How much pocket money did Ishaan have, in rupees?
  9. 9.Kabir spent ₹65, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  10. 10.Aarav spent ₹7, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  11. 11.284 is 80% of ?
  12. 12.10% of a number is 15. What is the number?
  13. 13.10% of a number is 1. What is the number?
  14. 14.75% of a number is 135. What is the number?
  15. 15.Dev spent ₹30, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  16. 16.26 is 10% of ?
  17. 17.Isha spent ₹6, which is 10% of the pocket money. How much pocket money did Isha have, in rupees?
  18. 18.40% of a number is 8. What is the number?
  19. 19.12% of a number is 42. What is the number?
  20. 20.50% of a number is 186. What is the number?
  21. 21.Sara spent ₹9, which is 12% of the pocket money. How much pocket money did Sara have, in rupees?
  22. 22.Isha spent ₹72, which is 30% of the pocket money. How much pocket money did Isha have, in rupees?
  23. 23.42 is 20% of ?
  24. 24.40% of a number is 2. What is the number?
  25. 25.69 is 20% of ?
  26. 26.Sara spent ₹52, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  27. 27.Dev spent ₹15, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  28. 28.36 is 12% of ?
  29. 29.12% of a number is 3. What is the number?
  30. 30.10% of a number is 7. What is the number?
  31. 31.Dev spent ₹10, which is 40% of the pocket money. How much pocket money did Dev have, in rupees?
  32. 32.171 is 60% of ?
  33. 33.21 is 30% of ?
  34. 34.12 is 25% of ?
  35. 35.12% of a number is 33. What is the number?
  36. 36.40% of a number is 122. What is the number?
  37. 37.50% of a number is 112. What is the number?
  38. 38.198 is 60% of ?
  39. 39.Riya spent ₹114, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  40. 40.10% of a number is 3. What is the number?

Answer key

  1. 300
  2. 228
  3. 100
  4. 198
  5. 164
  6. 120
  7. 80
  8. 40
  9. 325
  10. 70
  11. 355
  12. 150
  13. 10
  14. 180
  15. 100
  16. 260
  17. 60
  18. 20
  19. 350
  20. 372
  21. 75
  22. 240
  23. 210
  24. 5
  25. 345
  26. 208
  27. 125
  28. 300
  29. 25
  30. 70
  31. 25
  32. 285
  33. 70
  34. 48
  35. 275
  36. 305
  37. 224
  38. 330
  39. 152
  40. 30

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