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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 600 · 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. 1.11 is 10% of ?
  2. 2.10% of a number is 1. What is the number?
  3. 3.228 is 60% of ?
  4. 4.Aarav spent ₹8, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  5. 5.Diya spent ₹189, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  6. 6.69 is 60% of ?
  7. 7.72 is 75% of ?
  8. 8.75% of a number is 138. What is the number?
  9. 9.42 is 12% of ?
  10. 10.40% of a number is 10. What is the number?
  11. 11.Aarav spent ₹192, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  12. 12.15% of a number is 24. What is the number?
  13. 13.60% of a number is 63. What is the number?
  14. 14.Meera spent ₹129, which is 75% of the pocket money. How much pocket money did Meera have, in rupees?
  15. 15.60% of a number is 45. What is the number?
  16. 16.40% of a number is 12. What is the number?
  17. 17.80% of a number is 140. What is the number?
  18. 18.Meera spent ₹6, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  19. 19.Dev spent ₹39, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  20. 20.174 is 60% of ?
  21. 21.20% of a number is 19. What is the number?
  22. 22.Arjun spent ₹1, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  23. 23.20% of a number is 9. What is the number?
  24. 24.80% of a number is 232. What is the number?
  25. 25.Riya spent ₹20, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  26. 26.5% of a number is 16. What is the number?
  27. 27.17 is 20% of ?
  28. 28.15% of a number is 54. What is the number?
  29. 29.114 is 40% of ?
  30. 30.12% of a number is 36. What is the number?
  31. 31.40 is 40% of ?
  32. 32.78 is 60% of ?
  33. 33.30% of a number is 57. What is the number?
  34. 34.41 is 25% of ?
  35. 35.30% of a number is 15. What is the number?
  36. 36.5% of a number is 19. What is the number?
  37. 37.10 is 5% of ?
  38. 38.154 is 40% of ?
  39. 39.Dev spent ₹45, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  40. 40.30% of a number is 93. What is the number?

Answer key

  1. 110
  2. 10
  3. 380
  4. 10
  5. 378
  6. 115
  7. 96
  8. 184
  9. 350
  10. 25
  11. 384
  12. 160
  13. 105
  14. 172
  15. 75
  16. 30
  17. 175
  18. 12
  19. 390
  20. 290
  21. 95
  22. 20
  23. 45
  24. 290
  25. 100
  26. 320
  27. 85
  28. 360
  29. 285
  30. 300
  31. 100
  32. 130
  33. 190
  34. 164
  35. 50
  36. 380
  37. 200
  38. 385
  39. 150
  40. 310

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