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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 101 · 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 25% of ?
  2. 2.Sara spent ₹5, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  3. 3.Ishaan spent ₹37, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  4. 4.Anaya spent ₹33, which is 10% of the pocket money. How much pocket money did Anaya have, in rupees?
  5. 5.Rohan spent ₹34, which is 10% of the pocket money. How much pocket money did Rohan have, in rupees?
  6. 6.30% of a number is 21. What is the number?
  7. 7.20% of a number is 38. What is the number?
  8. 8.32 is 40% of ?
  9. 9.Sara spent ₹122, which is 40% of the pocket money. How much pocket money did Sara have, in rupees?
  10. 10.Aarav spent ₹24, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  11. 11.Arjun spent ₹142, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  12. 12.80% of a number is 120. What is the number?
  13. 13.Kabir spent ₹10, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?
  14. 14.Rohan spent ₹36, which is 30% of the pocket money. How much pocket money did Rohan have, in rupees?
  15. 15.Rohan spent ₹158, which is 50% of the pocket money. How much pocket money did Rohan have, in rupees?
  16. 16.Diya spent ₹79, which is 25% of the pocket money. How much pocket money did Diya have, in rupees?
  17. 17.25% of a number is 84. What is the number?
  18. 18.20 is 80% of ?
  19. 19.35 is 10% of ?
  20. 20.50% of a number is 20. What is the number?
  21. 21.10% of a number is 28. What is the number?
  22. 22.Arjun spent ₹27, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  23. 23.12% of a number is 48. What is the number?
  24. 24.40% of a number is 140. What is the number?
  25. 25.20% of a number is 70. What is the number?
  26. 26.198 is 75% of ?
  27. 27.6 is 12% of ?
  28. 28.Arjun spent ₹58, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  29. 29.5% of a number is 6. What is the number?
  30. 30.45 is 12% of ?
  31. 31.30% of a number is 96. What is the number?
  32. 32.30% of a number is 15. What is the number?
  33. 33.20% of a number is 47. What is the number?
  34. 34.80% of a number is 272. What is the number?
  35. 35.222 is 75% of ?
  36. 36.156 is 60% of ?
  37. 37.15% of a number is 15. What is the number?
  38. 38.279 is 75% of ?
  39. 39.Arjun spent ₹40, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  40. 40.5% of a number is 5. What is the number?

Answer key

  1. 160
  2. 10
  3. 370
  4. 330
  5. 340
  6. 70
  7. 190
  8. 80
  9. 305
  10. 240
  11. 355
  12. 150
  13. 50
  14. 120
  15. 316
  16. 316
  17. 336
  18. 25
  19. 350
  20. 40
  21. 280
  22. 180
  23. 400
  24. 350
  25. 350
  26. 264
  27. 50
  28. 290
  29. 120
  30. 375
  31. 320
  32. 50
  33. 235
  34. 340
  35. 296
  36. 260
  37. 100
  38. 372
  39. 100
  40. 100

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