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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 690 · 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. 1.10% of a number is 18. What is the number?
  2. 2.Isha spent ₹11, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  3. 3.18 is 15% of ?
  4. 4.9 is 12% of ?
  5. 5.Kabir spent ₹165, which is 60% of the pocket money. How much pocket money did Kabir have, in rupees?
  6. 6.Kabir spent ₹6, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  7. 7.12% of a number is 48. What is the number?
  8. 8.Isha spent ₹10, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  9. 9.104 is 40% of ?
  10. 10.75% of a number is 39. What is the number?
  11. 11.Kabir spent ₹36, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  12. 12.Kabir spent ₹18, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  13. 13.9 is 30% of ?
  14. 14.25% of a number is 1. What is the number?
  15. 15.Meera spent ₹177, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  16. 16.72 is 25% of ?
  17. 17.50% of a number is 92. What is the number?
  18. 18.80% of a number is 28. What is the number?
  19. 19.25 is 20% of ?
  20. 20.15% of a number is 6. What is the number?
  21. 21.28 is 10% of ?
  22. 22.30% of a number is 33. What is the number?
  23. 23.25% of a number is 75. What is the number?
  24. 24.20% of a number is 32. What is the number?
  25. 25.15% of a number is 48. What is the number?
  26. 26.5% of a number is 2. What is the number?
  27. 27.Meera spent ₹198, which is 75% of the pocket money. How much pocket money did Meera have, in rupees?
  28. 28.60 is 80% of ?
  29. 29.Arjun spent ₹31, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  30. 30.Meera spent ₹110, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  31. 31.27 is 30% of ?
  32. 32.Meera spent ₹208, which is 80% of the pocket money. How much pocket money did Meera have, in rupees?
  33. 33.Aarav spent ₹52, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  34. 34.21 is 15% of ?
  35. 35.7 is 20% of ?
  36. 36.Dev spent ₹25, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  37. 37.32 is 10% of ?
  38. 38.Isha spent ₹24, which is 12% of the pocket money. How much pocket money did Isha have, in rupees?
  39. 39.Ishaan spent ₹20, which is 5% of the pocket money. How much pocket money did Ishaan have, in rupees?
  40. 40.12% of a number is 3. What is the number?

Answer key

  1. 180
  2. 44
  3. 120
  4. 75
  5. 275
  6. 40
  7. 400
  8. 50
  9. 260
  10. 52
  11. 240
  12. 360
  13. 30
  14. 4
  15. 354
  16. 288
  17. 184
  18. 35
  19. 125
  20. 40
  21. 280
  22. 110
  23. 300
  24. 160
  25. 320
  26. 40
  27. 264
  28. 75
  29. 155
  30. 275
  31. 90
  32. 260
  33. 208
  34. 140
  35. 35
  36. 100
  37. 320
  38. 200
  39. 400
  40. 25

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