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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 42 · 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.Riya spent ₹25, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  2. 2.12% of a number is 48. What is the number?
  3. 3.183 is 60% of ?
  4. 4.10% of a number is 10. What is the number?
  5. 5.Aarav spent ₹20, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  6. 6.Isha spent ₹300, which is 80% of the pocket money. How much pocket money did Isha have, in rupees?
  7. 7.5% of a number is 16. What is the number?
  8. 8.25% of a number is 85. What is the number?
  9. 9.81 is 30% of ?
  10. 10.80% of a number is 296. What is the number?
  11. 11.15% of a number is 57. What is the number?
  12. 12.24 is 12% of ?
  13. 13.4 is 40% of ?
  14. 14.Isha spent ₹64, which is 80% of the pocket money. How much pocket money did Isha have, in rupees?
  15. 15.Dev spent ₹39, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?
  16. 16.39 is 12% of ?
  17. 17.Riya spent ₹96, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  18. 18.30 is 75% of ?
  19. 19.Anaya spent ₹99, which is 30% of the pocket money. How much pocket money did Anaya have, in rupees?
  20. 20.40% of a number is 86. What is the number?
  21. 21.25% of a number is 3. What is the number?
  22. 22.Kabir spent ₹30, which is 12% of the pocket money. How much pocket money did Kabir have, in rupees?
  23. 23.50% of a number is 143. What is the number?
  24. 24.25% of a number is 51. What is the number?
  25. 25.172 is 80% of ?
  26. 26.25% of a number is 42. What is the number?
  27. 27.12% of a number is 30. What is the number?
  28. 28.Dev spent ₹3, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  29. 29.Riya spent ₹1, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  30. 30.4 is 80% of ?
  31. 31.Diya spent ₹8, which is 10% of the pocket money. How much pocket money did Diya have, in rupees?
  32. 32.40% of a number is 140. What is the number?
  33. 33.80% of a number is 68. What is the number?
  34. 34.Rohan spent ₹72, which is 30% of the pocket money. How much pocket money did Rohan have, in rupees?
  35. 35.15 is 12% of ?
  36. 36.Rohan spent ₹207, which is 60% of the pocket money. How much pocket money did Rohan have, in rupees?
  37. 37.60% of a number is 93. What is the number?
  38. 38.20% of a number is 75. What is the number?
  39. 39.10% of a number is 15. What is the number?
  40. 40.Arjun spent ₹38, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?

Answer key

  1. 125
  2. 400
  3. 305
  4. 100
  5. 200
  6. 375
  7. 320
  8. 340
  9. 270
  10. 370
  11. 380
  12. 200
  13. 10
  14. 80
  15. 65
  16. 325
  17. 128
  18. 40
  19. 330
  20. 215
  21. 12
  22. 250
  23. 286
  24. 204
  25. 215
  26. 168
  27. 250
  28. 25
  29. 5
  30. 5
  31. 80
  32. 350
  33. 85
  34. 240
  35. 125
  36. 345
  37. 155
  38. 375
  39. 150
  40. 380

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