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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 934 · 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.

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  1. 1.60% of a number is 231. What is the number?
  2. 2.Riya spent ₹60, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  3. 3.Aarav spent ₹129, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  4. 4.141 is 60% of ?
  5. 5.75% of a number is 297. What is the number?
  6. 6.Arjun spent ₹18, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  7. 7.15% of a number is 18. What is the number?
  8. 8.25% of a number is 61. What is the number?
  9. 9.20% of a number is 37. What is the number?
  10. 10.9 is 5% of ?
  11. 11.Arjun spent ₹16, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  12. 12.Arjun spent ₹39, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  13. 13.Kabir spent ₹22, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  14. 14.40% of a number is 68. What is the number?
  15. 15.80% of a number is 56. What is the number?
  16. 16.12% of a number is 45. What is the number?
  17. 17.25% of a number is 95. What is the number?
  18. 18.2 is 25% of ?
  19. 19.25% of a number is 53. What is the number?
  20. 20.20% of a number is 3. What is the number?
  21. 21.8 is 40% of ?
  22. 22.69 is 25% of ?
  23. 23.12 is 12% of ?
  24. 24.20% of a number is 1. What is the number?
  25. 25.136 is 80% of ?
  26. 26.Diya spent ₹24, which is 15% of the pocket money. How much pocket money did Diya have, in rupees?
  27. 27.60% of a number is 177. What is the number?
  28. 28.15% of a number is 6. What is the number?
  29. 29.25% of a number is 12. What is the number?
  30. 30.Sara spent ₹73, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  31. 31.1 is 50% of ?
  32. 32.90 is 25% of ?
  33. 33.Aarav spent ₹3, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  34. 34.33 is 15% of ?
  35. 35.33 is 20% of ?
  36. 36.10% of a number is 22. What is the number?
  37. 37.17 is 5% of ?
  38. 38.2 is 10% of ?
  39. 39.Aarav spent ₹8, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  40. 40.12% of a number is 21. What is the number?

Answer key

  1. 385
  2. 400
  3. 258
  4. 235
  5. 396
  6. 120
  7. 120
  8. 244
  9. 185
  10. 180
  11. 80
  12. 195
  13. 220
  14. 170
  15. 70
  16. 375
  17. 380
  18. 8
  19. 212
  20. 15
  21. 20
  22. 276
  23. 100
  24. 5
  25. 170
  26. 160
  27. 295
  28. 40
  29. 48
  30. 365
  31. 2
  32. 360
  33. 15
  34. 220
  35. 165
  36. 220
  37. 340
  38. 20
  39. 10
  40. 175

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