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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 633 · 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. 1.7 is 5% of ?
  2. 2.48 is 30% of ?
  3. 3.5% of a number is 12. What is the number?
  4. 4.Ishaan spent ₹12, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  5. 5.36 is 10% of ?
  6. 6.20% of a number is 6. What is the number?
  7. 7.3 is 30% of ?
  8. 8.Isha spent ₹12, which is 15% of the pocket money. How much pocket money did Isha have, in rupees?
  9. 9.21 is 15% of ?
  10. 10.20% of a number is 26. What is the number?
  11. 11.50% of a number is 166. What is the number?
  12. 12.Rohan spent ₹3, which is 12% of the pocket money. How much pocket money did Rohan have, in rupees?
  13. 13.80% of a number is 60. What is the number?
  14. 14.111 is 30% of ?
  15. 15.30% of a number is 87. What is the number?
  16. 16.50% of a number is 107. What is the number?
  17. 17.75% of a number is 267. What is the number?
  18. 18.12% of a number is 21. What is the number?
  19. 19.50% of a number is 6. What is the number?
  20. 20.50% of a number is 140. What is the number?
  21. 21.60% of a number is 81. What is the number?
  22. 22.20% of a number is 11. What is the number?
  23. 23.Ishaan spent ₹8, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  24. 24.12 is 5% of ?
  25. 25.Aarav spent ₹5, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  26. 26.60% of a number is 39. What is the number?
  27. 27.Dev spent ₹15, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  28. 28.Sara spent ₹155, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  29. 29.164 is 50% of ?
  30. 30.25% of a number is 70. What is the number?
  31. 31.Sara spent ₹12, which is 15% of the pocket money. How much pocket money did Sara have, in rupees?
  32. 32.6 is 15% of ?
  33. 33.12% of a number is 45. What is the number?
  34. 34.60 is 30% of ?
  35. 35.Sara spent ₹15, which is 12% of the pocket money. How much pocket money did Sara have, in rupees?
  36. 36.80% of a number is 304. What is the number?
  37. 37.50% of a number is 10. What is the number?
  38. 38.40% of a number is 154. What is the number?
  39. 39.43 is 50% of ?
  40. 40.63 is 25% of ?

Answer key

  1. 140
  2. 160
  3. 240
  4. 100
  5. 360
  6. 30
  7. 10
  8. 80
  9. 140
  10. 130
  11. 332
  12. 25
  13. 75
  14. 370
  15. 290
  16. 214
  17. 356
  18. 175
  19. 12
  20. 280
  21. 135
  22. 55
  23. 80
  24. 240
  25. 100
  26. 65
  27. 50
  28. 310
  29. 328
  30. 280
  31. 80
  32. 40
  33. 375
  34. 200
  35. 125
  36. 380
  37. 20
  38. 385
  39. 86
  40. 252

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