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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 903 · 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. 1.5% of a number is 6. What is the number?
  2. 2.108 is 30% of ?
  3. 3.10% of a number is 34. What is the number?
  4. 4.17 is 5% of ?
  5. 5.80% of a number is 76. What is the number?
  6. 6.5 is 25% of ?
  7. 7.60% of a number is 18. What is the number?
  8. 8.Dev spent ₹162, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?
  9. 9.Aarav spent ₹39, which is 12% of the pocket money. How much pocket money did Aarav have, in rupees?
  10. 10.Ishaan spent ₹12, which is 60% of the pocket money. How much pocket money did Ishaan have, in rupees?
  11. 11.9 is 12% of ?
  12. 12.20% of a number is 13. What is the number?
  13. 13.40 is 25% of ?
  14. 14.Kabir spent ₹252, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  15. 15.39 is 30% of ?
  16. 16.80% of a number is 44. What is the number?
  17. 17.35 is 25% of ?
  18. 18.80% of a number is 232. What is the number?
  19. 19.75% of a number is 96. What is the number?
  20. 20.6 is 60% of ?
  21. 21.30 is 15% of ?
  22. 22.55 is 50% of ?
  23. 23.15% of a number is 6. What is the number?
  24. 24.80% of a number is 64. What is the number?
  25. 25.292 is 80% of ?
  26. 26.Ishaan spent ₹136, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?
  27. 27.75% of a number is 300. What is the number?
  28. 28.25% of a number is 17. What is the number?
  29. 29.Diya spent ₹1, which is 5% of the pocket money. How much pocket money did Diya have, in rupees?
  30. 30.Riya spent ₹45, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  31. 31.12% of a number is 30. What is the number?
  32. 32.12% of a number is 39. What is the number?
  33. 33.10% of a number is 36. What is the number?
  34. 34.Isha spent ₹137, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  35. 35.1 is 5% of ?
  36. 36.Riya spent ₹42, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  37. 37.Diya spent ₹91, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  38. 38.30% of a number is 12. What is the number?
  39. 39.10% of a number is 5. What is the number?
  40. 40.12% of a number is 12. What is the number?

Answer key

  1. 120
  2. 360
  3. 340
  4. 340
  5. 95
  6. 20
  7. 30
  8. 270
  9. 325
  10. 20
  11. 75
  12. 65
  13. 160
  14. 336
  15. 130
  16. 55
  17. 140
  18. 290
  19. 128
  20. 10
  21. 200
  22. 110
  23. 40
  24. 80
  25. 365
  26. 170
  27. 400
  28. 68
  29. 20
  30. 225
  31. 250
  32. 325
  33. 360
  34. 274
  35. 20
  36. 84
  37. 182
  38. 40
  39. 50
  40. 100

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