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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 972 · 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. 1.12 is 5% of ?
  2. 2.24 is 15% of ?
  3. 3.5% of a number is 7. What is the number?
  4. 4.83 is 50% of ?
  5. 5.Ishaan spent ₹4, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  6. 6.25% of a number is 30. What is the number?
  7. 7.42 is 20% of ?
  8. 8.20% of a number is 34. What is the number?
  9. 9.9 is 25% of ?
  10. 10.Kabir spent ₹27, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  11. 11.40% of a number is 60. What is the number?
  12. 12.Dev spent ₹54, which is 50% of the pocket money. How much pocket money did Dev have, in rupees?
  13. 13.Rohan spent ₹5, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  14. 14.142 is 50% of ?
  15. 15.264 is 80% of ?
  16. 16.40% of a number is 38. What is the number?
  17. 17.75% of a number is 60. What is the number?
  18. 18.Anaya spent ₹117, which is 75% of the pocket money. How much pocket money did Anaya have, in rupees?
  19. 19.Meera spent ₹2, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  20. 20.15% of a number is 60. What is the number?
  21. 21.27 is 75% of ?
  22. 22.4 is 10% of ?
  23. 23.Diya spent ₹97, which is 25% of the pocket money. How much pocket money did Diya have, in rupees?
  24. 24.81 is 30% of ?
  25. 25.Aarav spent ₹300, which is 75% of the pocket money. How much pocket money did Aarav have, in rupees?
  26. 26.Riya spent ₹42, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  27. 27.188 is 50% of ?
  28. 28.50% of a number is 181. What is the number?
  29. 29.60% of a number is 222. What is the number?
  30. 30.60% of a number is 162. What is the number?
  31. 31.80% of a number is 296. What is the number?
  32. 32.144 is 40% of ?
  33. 33.30% of a number is 81. What is the number?
  34. 34.35 is 20% of ?
  35. 35.Dev spent ₹110, which is 40% of the pocket money. How much pocket money did Dev have, in rupees?
  36. 36.27 is 15% of ?
  37. 37.75% of a number is 24. What is the number?
  38. 38.5% of a number is 17. What is the number?
  39. 39.75% of a number is 84. What is the number?
  40. 40.80% of a number is 264. What is the number?

Answer key

  1. 240
  2. 160
  3. 140
  4. 166
  5. 40
  6. 120
  7. 210
  8. 170
  9. 36
  10. 180
  11. 150
  12. 108
  13. 25
  14. 284
  15. 330
  16. 95
  17. 80
  18. 156
  19. 8
  20. 400
  21. 36
  22. 40
  23. 388
  24. 270
  25. 400
  26. 56
  27. 376
  28. 362
  29. 370
  30. 270
  31. 370
  32. 360
  33. 270
  34. 175
  35. 275
  36. 180
  37. 32
  38. 340
  39. 112
  40. 330

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