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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 9 · 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. 1.10% of a number is 32. What is the number?
  2. 2.10% of a number is 12. What is the number?
  3. 3.24 is 60% of ?
  4. 4.6 is 5% of ?
  5. 5.57 is 15% of ?
  6. 6.80% of a number is 84. What is the number?
  7. 7.4 is 25% of ?
  8. 8.Arjun spent ₹77, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  9. 9.75% of a number is 216. What is the number?
  10. 10.Dev spent ₹21, which is 15% of the pocket money. How much pocket money did Dev have, in rupees?
  11. 11.60% of a number is 186. What is the number?
  12. 12.60% of a number is 51. What is the number?
  13. 13.9 is 12% of ?
  14. 14.10% of a number is 5. What is the number?
  15. 15.148 is 40% of ?
  16. 16.Isha spent ₹78, which is 75% of the pocket money. How much pocket money did Isha have, in rupees?
  17. 17.45 is 75% of ?
  18. 18.Kabir spent ₹88, which is 40% of the pocket money. How much pocket money did Kabir have, in rupees?
  19. 19.30 is 75% of ?
  20. 20.12% of a number is 33. What is the number?
  21. 21.Arjun spent ₹69, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  22. 22.33 is 15% of ?
  23. 23.94 is 25% of ?
  24. 24.Meera spent ₹25, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  25. 25.Meera spent ₹9, which is 10% of the pocket money. How much pocket money did Meera have, in rupees?
  26. 26.80 is 40% of ?
  27. 27.75% of a number is 201. What is the number?
  28. 28.37 is 10% of ?
  29. 29.Ishaan spent ₹24, which is 30% of the pocket money. How much pocket money did Ishaan have, in rupees?
  30. 30.150 is 75% of ?
  31. 31.12 is 10% of ?
  32. 32.64 is 20% of ?
  33. 33.5% of a number is 8. What is the number?
  34. 34.Meera spent ₹15, which is 15% of the pocket money. How much pocket money did Meera have, in rupees?
  35. 35.Aarav spent ₹20, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  36. 36.Kabir spent ₹114, which is 40% of the pocket money. How much pocket money did Kabir have, in rupees?
  37. 37.109 is 50% of ?
  38. 38.20% of a number is 32. What is the number?
  39. 39.12% of a number is 30. What is the number?
  40. 40.60% of a number is 12. What is the number?

Answer key

  1. 320
  2. 120
  3. 40
  4. 120
  5. 380
  6. 105
  7. 16
  8. 385
  9. 288
  10. 140
  11. 310
  12. 85
  13. 75
  14. 50
  15. 370
  16. 104
  17. 60
  18. 220
  19. 40
  20. 275
  21. 230
  22. 220
  23. 376
  24. 100
  25. 90
  26. 200
  27. 268
  28. 370
  29. 80
  30. 200
  31. 120
  32. 320
  33. 160
  34. 100
  35. 25
  36. 285
  37. 218
  38. 160
  39. 250
  40. 20

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