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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 66 · 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 36. What is the number?
  2. 2.12% of a number is 42. What is the number?
  3. 3.80% of a number is 104. What is the number?
  4. 4.Anaya spent ₹21, which is 12% of the pocket money. How much pocket money did Anaya have, in rupees?
  5. 5.75% of a number is 243. What is the number?
  6. 6.Aarav spent ₹180, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  7. 7.12% of a number is 3. What is the number?
  8. 8.28 is 20% of ?
  9. 9.5% of a number is 3. What is the number?
  10. 10.225 is 75% of ?
  11. 11.5 is 10% of ?
  12. 12.17 is 10% of ?
  13. 13.Riya spent ₹14, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  14. 14.42 is 75% of ?
  15. 15.25% of a number is 3. What is the number?
  16. 16.5% of a number is 15. What is the number?
  17. 17.Dev spent ₹8, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  18. 18.109 is 50% of ?
  19. 19.Isha spent ₹114, which is 60% of the pocket money. How much pocket money did Isha have, in rupees?
  20. 20.12% of a number is 18. What is the number?
  21. 21.80% of a number is 24. What is the number?
  22. 22.20% of a number is 65. What is the number?
  23. 23.Sara spent ₹33, which is 10% of the pocket money. How much pocket money did Sara have, in rupees?
  24. 24.10% of a number is 34. What is the number?
  25. 25.Anaya spent ₹297, which is 75% of the pocket money. How much pocket money did Anaya have, in rupees?
  26. 26.15% of a number is 45. What is the number?
  27. 27.10% of a number is 13. What is the number?
  28. 28.Isha spent ₹108, which is 75% of the pocket money. How much pocket money did Isha have, in rupees?
  29. 29.3 is 5% of ?
  30. 30.50% of a number is 64. What is the number?
  31. 31.Aarav spent ₹320, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  32. 32.Kabir spent ₹31, which is 25% of the pocket money. How much pocket money did Kabir have, in rupees?
  33. 33.36 is 40% of ?
  34. 34.50% of a number is 174. What is the number?
  35. 35.Riya spent ₹48, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  36. 36.Dev spent ₹15, which is 15% of the pocket money. How much pocket money did Dev have, in rupees?
  37. 37.50% of a number is 99. What is the number?
  38. 38.Dev spent ₹70, which is 20% of the pocket money. How much pocket money did Dev have, in rupees?
  39. 39.40% of a number is 86. What is the number?
  40. 40.40% of a number is 42. What is the number?

Answer key

  1. 90
  2. 350
  3. 130
  4. 175
  5. 324
  6. 360
  7. 25
  8. 140
  9. 60
  10. 300
  11. 50
  12. 170
  13. 280
  14. 56
  15. 12
  16. 300
  17. 80
  18. 218
  19. 190
  20. 150
  21. 30
  22. 325
  23. 330
  24. 340
  25. 396
  26. 300
  27. 130
  28. 144
  29. 60
  30. 128
  31. 400
  32. 124
  33. 90
  34. 348
  35. 320
  36. 100
  37. 198
  38. 350
  39. 215
  40. 105

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