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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 721 · 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. 1.40 is 80% of ?
  2. 2.Isha spent ₹60, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  3. 3.54 is 40% of ?
  4. 4.Isha spent ₹25, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  5. 5.25% of a number is 4. What is the number?
  6. 6.Sara spent ₹117, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  7. 7.75% of a number is 246. What is the number?
  8. 8.Dev spent ₹24, which is 50% of the pocket money. How much pocket money did Dev have, in rupees?
  9. 9.40% of a number is 72. What is the number?
  10. 10.40% of a number is 18. What is the number?
  11. 11.Aarav spent ₹10, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  12. 12.12 is 15% of ?
  13. 13.20% of a number is 10. What is the number?
  14. 14.8 is 10% of ?
  15. 15.45 is 12% of ?
  16. 16.Arjun spent ₹32, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  17. 17.Aarav spent ₹25, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  18. 18.15 is 10% of ?
  19. 19.Isha spent ₹10, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  20. 20.40% of a number is 66. What is the number?
  21. 21.237 is 60% of ?
  22. 22.15 is 5% of ?
  23. 23.150 is 40% of ?
  24. 24.90 is 30% of ?
  25. 25.8 is 5% of ?
  26. 26.Aarav spent ₹141, which is 75% of the pocket money. How much pocket money did Aarav have, in rupees?
  27. 27.42 is 15% of ?
  28. 28.36 is 25% of ?
  29. 29.5% of a number is 15. What is the number?
  30. 30.48 is 25% of ?
  31. 31.25% of a number is 17. What is the number?
  32. 32.137 is 50% of ?
  33. 33.80% of a number is 72. What is the number?
  34. 34.12% of a number is 48. What is the number?
  35. 35.5% of a number is 2. What is the number?
  36. 36.40 is 10% of ?
  37. 37.40% of a number is 146. What is the number?
  38. 38.50% of a number is 70. What is the number?
  39. 39.272 is 80% of ?
  40. 40.40% of a number is 96. What is the number?

Answer key

  1. 50
  2. 120
  3. 135
  4. 100
  5. 16
  6. 390
  7. 328
  8. 48
  9. 180
  10. 45
  11. 40
  12. 80
  13. 50
  14. 80
  15. 375
  16. 320
  17. 250
  18. 150
  19. 40
  20. 165
  21. 395
  22. 300
  23. 375
  24. 300
  25. 160
  26. 188
  27. 280
  28. 144
  29. 300
  30. 192
  31. 68
  32. 274
  33. 90
  34. 400
  35. 40
  36. 400
  37. 365
  38. 140
  39. 340
  40. 240

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