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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 270 · 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. 1.27 is 12% of ?
  2. 2.102 is 75% of ?
  3. 3.15% of a number is 3. What is the number?
  4. 4.255 is 75% of ?
  5. 5.13 is 25% of ?
  6. 6.30 is 30% of ?
  7. 7.5 is 10% of ?
  8. 8.20% of a number is 59. What is the number?
  9. 9.50% of a number is 165. What is the number?
  10. 10.132 is 75% of ?
  11. 11.90 is 75% of ?
  12. 12.50% of a number is 73. What is the number?
  13. 13.20% of a number is 78. What is the number?
  14. 14.Kabir spent ₹8, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  15. 15.24 is 10% of ?
  16. 16.80% of a number is 68. What is the number?
  17. 17.50% of a number is 98. What is the number?
  18. 18.25% of a number is 21. What is the number?
  19. 19.11 is 5% of ?
  20. 20.Diya spent ₹15, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  21. 21.Sara spent ₹17, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  22. 22.16 is 80% of ?
  23. 23.48 is 15% of ?
  24. 24.50% of a number is 91. What is the number?
  25. 25.Rohan spent ₹99, which is 30% of the pocket money. How much pocket money did Rohan have, in rupees?
  26. 26.40% of a number is 80. What is the number?
  27. 27.6 is 60% of ?
  28. 28.Diya spent ₹40, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  29. 29.15 is 20% of ?
  30. 30.Isha spent ₹27, which is 30% of the pocket money. How much pocket money did Isha have, in rupees?
  31. 31.Diya spent ₹8, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  32. 32.Rohan spent ₹24, which is 15% of the pocket money. How much pocket money did Rohan have, in rupees?
  33. 33.Sara spent ₹39, which is 10% of the pocket money. How much pocket money did Sara have, in rupees?
  34. 34.9 is 15% of ?
  35. 35.20% of a number is 64. What is the number?
  36. 36.6 is 15% of ?
  37. 37.Arjun spent ₹37, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  38. 38.10% of a number is 29. What is the number?
  39. 39.50% of a number is 28. What is the number?
  40. 40.Ishaan spent ₹120, which is 40% of the pocket money. How much pocket money did Ishaan have, in rupees?

Answer key

  1. 225
  2. 136
  3. 20
  4. 340
  5. 52
  6. 100
  7. 50
  8. 295
  9. 330
  10. 176
  11. 120
  12. 146
  13. 390
  14. 10
  15. 240
  16. 85
  17. 196
  18. 84
  19. 220
  20. 75
  21. 85
  22. 20
  23. 320
  24. 182
  25. 330
  26. 200
  27. 10
  28. 200
  29. 75
  30. 90
  31. 40
  32. 160
  33. 390
  34. 60
  35. 320
  36. 40
  37. 185
  38. 290
  39. 56
  40. 300

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