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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 806 · 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. 1.60% of a number is 54. What is the number?
  2. 2.75% of a number is 21. What is the number?
  3. 3.105 is 30% of ?
  4. 4.5% of a number is 10. What is the number?
  5. 5.51 is 30% of ?
  6. 6.80 is 20% of ?
  7. 7.75% of a number is 219. What is the number?
  8. 8.Diya spent ₹81, which is 60% of the pocket money. How much pocket money did Diya have, in rupees?
  9. 9.165 is 75% of ?
  10. 10.Aarav spent ₹21, which is 30% of the pocket money. How much pocket money did Aarav have, in rupees?
  11. 11.5% of a number is 17. What is the number?
  12. 12.297 is 75% of ?
  13. 13.106 is 40% of ?
  14. 14.Ishaan spent ₹234, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  15. 15.75% of a number is 87. What is the number?
  16. 16.20% of a number is 75. What is the number?
  17. 17.40% of a number is 154. What is the number?
  18. 18.Diya spent ₹9, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  19. 19.40% of a number is 160. What is the number?
  20. 20.25% of a number is 30. What is the number?
  21. 21.27 is 12% of ?
  22. 22.140 is 80% of ?
  23. 23.Riya spent ₹58, which is 40% of the pocket money. How much pocket money did Riya have, in rupees?
  24. 24.Rohan spent ₹56, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  25. 25.132 is 60% of ?
  26. 26.15% of a number is 12. What is the number?
  27. 27.Arjun spent ₹10, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  28. 28.20% of a number is 70. What is the number?
  29. 29.110 is 40% of ?
  30. 30.25% of a number is 6. What is the number?
  31. 31.60% of a number is 204. What is the number?
  32. 32.Kabir spent ₹59, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  33. 33.Riya spent ₹37, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  34. 34.29 is 25% of ?
  35. 35.10 is 5% of ?
  36. 36.48 is 30% of ?
  37. 37.Kabir spent ₹39, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  38. 38.44 is 80% of ?
  39. 39.10% of a number is 6. What is the number?
  40. 40.40 is 40% of ?

Answer key

  1. 90
  2. 28
  3. 350
  4. 200
  5. 170
  6. 400
  7. 292
  8. 135
  9. 220
  10. 70
  11. 340
  12. 396
  13. 265
  14. 312
  15. 116
  16. 375
  17. 385
  18. 18
  19. 400
  20. 120
  21. 225
  22. 175
  23. 145
  24. 70
  25. 220
  26. 80
  27. 200
  28. 350
  29. 275
  30. 24
  31. 340
  32. 295
  33. 185
  34. 116
  35. 200
  36. 160
  37. 260
  38. 55
  39. 60
  40. 100

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