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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 479 · 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.

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  1. 1.20% of a number is 44. What is the number?
  2. 2.Kabir spent ₹132, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  3. 3.Sara spent ₹20, which is 10% of the pocket money. How much pocket money did Sara have, in rupees?
  4. 4.39 is 12% of ?
  5. 5.198 is 60% of ?
  6. 6.2 is 5% of ?
  7. 7.21 is 10% of ?
  8. 8.41 is 50% of ?
  9. 9.20% of a number is 4. What is the number?
  10. 10.20% of a number is 77. What is the number?
  11. 11.10% of a number is 32. What is the number?
  12. 12.Isha spent ₹36, which is 15% of the pocket money. How much pocket money did Isha have, in rupees?
  13. 13.10% of a number is 22. What is the number?
  14. 14.50% of a number is 146. What is the number?
  15. 15.40% of a number is 18. What is the number?
  16. 16.65 is 20% of ?
  17. 17.Aarav spent ₹10, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  18. 18.60% of a number is 30. What is the number?
  19. 19.Sara spent ₹204, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  20. 20.20% of a number is 78. What is the number?
  21. 21.25% of a number is 2. What is the number?
  22. 22.Dev spent ₹150, which is 40% of the pocket money. How much pocket money did Dev have, in rupees?
  23. 23.40% of a number is 98. What is the number?
  24. 24.80 is 80% of ?
  25. 25.Diya spent ₹36, which is 12% of the pocket money. How much pocket money did Diya have, in rupees?
  26. 26.60% of a number is 156. What is the number?
  27. 27.Riya spent ₹62, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  28. 28.Rohan spent ₹36, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  29. 29.54 is 15% of ?
  30. 30.25% of a number is 26. What is the number?
  31. 31.5 is 5% of ?
  32. 32.65 is 25% of ?
  33. 33.Sara spent ₹60, which is 40% of the pocket money. How much pocket money did Sara have, in rupees?
  34. 34.Aarav spent ₹106, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  35. 35.56 is 40% of ?
  36. 36.20% of a number is 26. What is the number?
  37. 37.20% of a number is 23. What is the number?
  38. 38.80% of a number is 320. What is the number?
  39. 39.5 is 10% of ?
  40. 40.12% of a number is 12. What is the number?

Answer key

  1. 220
  2. 165
  3. 200
  4. 325
  5. 330
  6. 40
  7. 210
  8. 82
  9. 20
  10. 385
  11. 320
  12. 240
  13. 220
  14. 292
  15. 45
  16. 325
  17. 200
  18. 50
  19. 340
  20. 390
  21. 8
  22. 375
  23. 245
  24. 100
  25. 300
  26. 260
  27. 124
  28. 180
  29. 360
  30. 104
  31. 100
  32. 260
  33. 150
  34. 212
  35. 140
  36. 130
  37. 115
  38. 400
  39. 50
  40. 100

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