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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 743 · 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.

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  1. 1.80% of a number is 32. What is the number?
  2. 2.75% of a number is 300. What is the number?
  3. 3.20% of a number is 30. What is the number?
  4. 4.36 is 80% of ?
  5. 5.Dev spent ₹213, which is 75% of the pocket money. How much pocket money did Dev have, in rupees?
  6. 6.260 is 80% of ?
  7. 7.Anaya spent ₹50, which is 25% of the pocket money. How much pocket money did Anaya have, in rupees?
  8. 8.Diya spent ₹224, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  9. 9.Riya spent ₹165, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  10. 10.Sara spent ₹123, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  11. 11.11 is 20% of ?
  12. 12.40% of a number is 10. What is the number?
  13. 13.Aarav spent ₹1, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  14. 14.Aarav spent ₹294, which is 75% of the pocket money. How much pocket money did Aarav have, in rupees?
  15. 15.114 is 60% of ?
  16. 16.17 is 5% of ?
  17. 17.8 is 5% of ?
  18. 18.Riya spent ₹24, which is 60% of the pocket money. How much pocket money did Riya have, in rupees?
  19. 19.Meera spent ₹138, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  20. 20.5% of a number is 20. What is the number?
  21. 21.40% of a number is 96. What is the number?
  22. 22.12% of a number is 30. What is the number?
  23. 23.Sara spent ₹36, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  24. 24.10% of a number is 35. What is the number?
  25. 25.15 is 15% of ?
  26. 26.60% of a number is 96. What is the number?
  27. 27.60% of a number is 42. What is the number?
  28. 28.30% of a number is 72. What is the number?
  29. 29.30% of a number is 54. What is the number?
  30. 30.Anaya spent ₹104, which is 80% of the pocket money. How much pocket money did Anaya have, in rupees?
  31. 31.Sara spent ₹179, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  32. 32.Kabir spent ₹42, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  33. 33.75% of a number is 39. What is the number?
  34. 34.156 is 80% of ?
  35. 35.Diya spent ₹27, which is 15% of the pocket money. How much pocket money did Diya have, in rupees?
  36. 36.60% of a number is 189. What is the number?
  37. 37.12% of a number is 9. What is the number?
  38. 38.75% of a number is 258. What is the number?
  39. 39.Ishaan spent ₹28, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?
  40. 40.Kabir spent ₹12, which is 20% of the pocket money. How much pocket money did Kabir have, in rupees?

Answer key

  1. 40
  2. 400
  3. 150
  4. 45
  5. 284
  6. 325
  7. 200
  8. 280
  9. 330
  10. 205
  11. 55
  12. 25
  13. 5
  14. 392
  15. 190
  16. 340
  17. 160
  18. 40
  19. 345
  20. 400
  21. 240
  22. 250
  23. 120
  24. 350
  25. 100
  26. 160
  27. 70
  28. 240
  29. 180
  30. 130
  31. 358
  32. 280
  33. 52
  34. 195
  35. 180
  36. 315
  37. 75
  38. 344
  39. 35
  40. 60

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