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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 167 · 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% of a number is 21. What is the number?
  2. 2.Isha spent ₹12, which is 40% of the pocket money. How much pocket money did Isha have, in rupees?
  3. 3.Dev spent ₹19, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  4. 4.24 is 15% of ?
  5. 5.243 is 75% of ?
  6. 6.50% of a number is 74. What is the number?
  7. 7.18 is 5% of ?
  8. 8.40% of a number is 158. What is the number?
  9. 9.80% of a number is 32. What is the number?
  10. 10.90 is 40% of ?
  11. 11.50% of a number is 174. What is the number?
  12. 12.Arjun spent ₹30, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  13. 13.60% of a number is 189. What is the number?
  14. 14.114 is 30% of ?
  15. 15.15% of a number is 54. What is the number?
  16. 16.40% of a number is 64. What is the number?
  17. 17.Rohan spent ₹36, which is 12% of the pocket money. How much pocket money did Rohan have, in rupees?
  18. 18.42 is 12% of ?
  19. 19.20% of a number is 31. What is the number?
  20. 20.10% of a number is 40. What is the number?
  21. 21.15% of a number is 57. What is the number?
  22. 22.Rohan spent ₹9, which is 15% of the pocket money. How much pocket money did Rohan have, in rupees?
  23. 23.54 is 75% of ?
  24. 24.1 is 25% of ?
  25. 25.Arjun spent ₹108, which is 75% of the pocket money. How much pocket money did Arjun have, in rupees?
  26. 26.144 is 40% of ?
  27. 27.5% of a number is 18. What is the number?
  28. 28.Isha spent ₹264, which is 80% of the pocket money. How much pocket money did Isha have, in rupees?
  29. 29.3 is 12% of ?
  30. 30.23 is 10% of ?
  31. 31.199 is 50% of ?
  32. 32.Rohan spent ₹264, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  33. 33.Aarav spent ₹33, which is 12% of the pocket money. How much pocket money did Aarav have, in rupees?
  34. 34.38 is 20% of ?
  35. 35.75% of a number is 105. What is the number?
  36. 36.Arjun spent ₹213, which is 60% of the pocket money. How much pocket money did Arjun have, in rupees?
  37. 37.Rohan spent ₹72, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  38. 38.Riya spent ₹32, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  39. 39.108 is 80% of ?
  40. 40.75% of a number is 258. What is the number?

Answer key

  1. 175
  2. 30
  3. 380
  4. 160
  5. 324
  6. 148
  7. 360
  8. 395
  9. 40
  10. 225
  11. 348
  12. 300
  13. 315
  14. 380
  15. 360
  16. 160
  17. 300
  18. 350
  19. 155
  20. 400
  21. 380
  22. 60
  23. 72
  24. 4
  25. 144
  26. 360
  27. 360
  28. 330
  29. 25
  30. 230
  31. 398
  32. 352
  33. 275
  34. 190
  35. 140
  36. 355
  37. 90
  38. 320
  39. 135
  40. 344

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