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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 65 · 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. 1.30 is 15% of ?
  2. 2.5% of a number is 5. What is the number?
  3. 3.10% of a number is 16. What is the number?
  4. 4.40% of a number is 148. What is the number?
  5. 5.Kabir spent ₹112, which is 50% of the pocket money. How much pocket money did Kabir have, in rupees?
  6. 6.12% of a number is 33. What is the number?
  7. 7.Sara spent ₹99, which is 75% of the pocket money. How much pocket money did Sara have, in rupees?
  8. 8.12% of a number is 18. What is the number?
  9. 9.28 is 10% of ?
  10. 10.23 is 10% of ?
  11. 11.Dev spent ₹54, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  12. 12.20% of a number is 77. What is the number?
  13. 13.40% of a number is 10. What is the number?
  14. 14.5% of a number is 4. What is the number?
  15. 15.25% of a number is 83. What is the number?
  16. 16.Diya spent ₹61, which is 25% of the pocket money. How much pocket money did Diya have, in rupees?
  17. 17.75% of a number is 261. What is the number?
  18. 18.24 is 10% of ?
  19. 19.120 is 80% of ?
  20. 20.17 is 20% of ?
  21. 21.Riya spent ₹12, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  22. 22.292 is 80% of ?
  23. 23.6 is 5% of ?
  24. 24.100 is 40% of ?
  25. 25.75% of a number is 96. What is the number?
  26. 26.12% of a number is 45. What is the number?
  27. 27.Rohan spent ₹18, which is 15% of the pocket money. How much pocket money did Rohan have, in rupees?
  28. 28.3 is 15% of ?
  29. 29.Dev spent ₹50, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  30. 30.Riya spent ₹16, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  31. 31.Rohan spent ₹5, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  32. 32.25% of a number is 11. What is the number?
  33. 33.42 is 30% of ?
  34. 34.15% of a number is 51. What is the number?
  35. 35.80% of a number is 24. What is the number?
  36. 36.30% of a number is 48. What is the number?
  37. 37.Ishaan spent ₹81, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  38. 38.Riya spent ₹42, which is 30% of the pocket money. How much pocket money did Riya have, in rupees?
  39. 39.Dev spent ₹4, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  40. 40.10% of a number is 6. What is the number?

Answer key

  1. 200
  2. 100
  3. 160
  4. 370
  5. 224
  6. 275
  7. 132
  8. 150
  9. 280
  10. 230
  11. 180
  12. 385
  13. 25
  14. 80
  15. 332
  16. 244
  17. 348
  18. 240
  19. 150
  20. 85
  21. 100
  22. 365
  23. 120
  24. 250
  25. 128
  26. 375
  27. 120
  28. 20
  29. 200
  30. 160
  31. 100
  32. 44
  33. 140
  34. 340
  35. 30
  36. 160
  37. 324
  38. 140
  39. 40
  40. 60

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