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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 640 · 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. 1.80% of a number is 204. What is the number?
  2. 2.Diya spent ₹154, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  3. 3.36 is 15% of ?
  4. 4.40% of a number is 28. What is the number?
  5. 5.75% of a number is 228. What is the number?
  6. 6.Isha spent ₹192, which is 60% of the pocket money. How much pocket money did Isha have, in rupees?
  7. 7.25% of a number is 68. What is the number?
  8. 8.25% of a number is 49. What is the number?
  9. 9.25% of a number is 86. What is the number?
  10. 10.42 is 75% of ?
  11. 11.71 is 25% of ?
  12. 12.Ishaan spent ₹17, which is 5% of the pocket money. How much pocket money did Ishaan have, in rupees?
  13. 13.15% of a number is 3. What is the number?
  14. 14.Diya spent ₹48, which is 30% of the pocket money. How much pocket money did Diya have, in rupees?
  15. 15.Diya spent ₹13, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  16. 16.Aarav spent ₹10, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  17. 17.36 is 12% of ?
  18. 18.10% of a number is 34. What is the number?
  19. 19.Kabir spent ₹192, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  20. 20.22 is 10% of ?
  21. 21.Kabir spent ₹4, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  22. 22.20% of a number is 29. What is the number?
  23. 23.Rohan spent ₹57, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  24. 24.20% of a number is 45. What is the number?
  25. 25.12% of a number is 42. What is the number?
  26. 26.3 is 12% of ?
  27. 27.12% of a number is 15. What is the number?
  28. 28.Dev spent ₹24, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  29. 29.42 is 12% of ?
  30. 30.Meera spent ₹37, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  31. 31.18 is 10% of ?
  32. 32.Kabir spent ₹54, which is 30% of the pocket money. How much pocket money did Kabir have, in rupees?
  33. 33.20% of a number is 6. What is the number?
  34. 34.15% of a number is 27. What is the number?
  35. 35.Anaya spent ₹126, which is 50% of the pocket money. How much pocket money did Anaya have, in rupees?
  36. 36.Diya spent ₹152, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  37. 37.Rohan spent ₹19, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  38. 38.4 is 5% of ?
  39. 39.1 is 5% of ?
  40. 40.50% of a number is 44. What is the number?

Answer key

  1. 255
  2. 308
  3. 240
  4. 70
  5. 304
  6. 320
  7. 272
  8. 196
  9. 344
  10. 56
  11. 284
  12. 340
  13. 20
  14. 160
  15. 65
  16. 50
  17. 300
  18. 340
  19. 240
  20. 220
  21. 20
  22. 145
  23. 228
  24. 225
  25. 350
  26. 25
  27. 125
  28. 240
  29. 350
  30. 185
  31. 180
  32. 180
  33. 30
  34. 180
  35. 252
  36. 380
  37. 380
  38. 80
  39. 20
  40. 88

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