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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 17 · 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.Isha spent ₹2, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  2. 2.Rohan spent ₹20, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  3. 3.Meera spent ₹3, which is 15% of the pocket money. How much pocket money did Meera have, in rupees?
  4. 4.Sara spent ₹108, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  5. 5.Aarav spent ₹48, which is 40% of the pocket money. How much pocket money did Aarav have, in rupees?
  6. 6.10% of a number is 24. What is the number?
  7. 7.232 is 80% of ?
  8. 8.Kabir spent ₹148, which is 50% of the pocket money. How much pocket money did Kabir have, in rupees?
  9. 9.Riya spent ₹8, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  10. 10.5 is 10% of ?
  11. 11.36 is 20% of ?
  12. 12.7 is 10% of ?
  13. 13.60% of a number is 141. What is the number?
  14. 14.39 is 20% of ?
  15. 15.Diya spent ₹6, which is 75% of the pocket money. How much pocket money did Diya have, in rupees?
  16. 16.32 is 10% of ?
  17. 17.Rohan spent ₹37, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  18. 18.93 is 75% of ?
  19. 19.Dev spent ₹168, which is 80% of the pocket money. How much pocket money did Dev have, in rupees?
  20. 20.5% of a number is 13. What is the number?
  21. 21.Arjun spent ₹40, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  22. 22.Dev spent ₹117, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  23. 23.Rohan spent ₹32, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  24. 24.15% of a number is 33. What is the number?
  25. 25.164 is 50% of ?
  26. 26.75% of a number is 255. What is the number?
  27. 27.60 is 60% of ?
  28. 28.25% of a number is 89. What is the number?
  29. 29.Rohan spent ₹20, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  30. 30.9 is 10% of ?
  31. 31.10% of a number is 14. What is the number?
  32. 32.Anaya spent ₹96, which is 75% of the pocket money. How much pocket money did Anaya have, in rupees?
  33. 33.Aarav spent ₹10, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  34. 34.Isha spent ₹21, which is 12% of the pocket money. How much pocket money did Isha have, in rupees?
  35. 35.16 is 10% of ?
  36. 36.38 is 50% of ?
  37. 37.20% of a number is 68. What is the number?
  38. 38.78 is 40% of ?
  39. 39.194 is 50% of ?
  40. 40.30% of a number is 51. What is the number?

Answer key

  1. 40
  2. 400
  3. 20
  4. 360
  5. 120
  6. 240
  7. 290
  8. 296
  9. 160
  10. 50
  11. 180
  12. 70
  13. 235
  14. 195
  15. 8
  16. 320
  17. 148
  18. 124
  19. 210
  20. 260
  21. 400
  22. 390
  23. 40
  24. 220
  25. 328
  26. 340
  27. 100
  28. 356
  29. 100
  30. 90
  31. 140
  32. 128
  33. 50
  34. 175
  35. 160
  36. 76
  37. 340
  38. 195
  39. 388
  40. 170

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