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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 509 · 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. 1.5% of a number is 13. What is the number?
  2. 2.75% of a number is 135. What is the number?
  3. 3.Sara spent ₹183, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  4. 4.Aarav spent ₹10, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  5. 5.Dev spent ₹67, which is 20% of the pocket money. How much pocket money did Dev have, in rupees?
  6. 6.20% of a number is 40. What is the number?
  7. 7.5% of a number is 11. What is the number?
  8. 8.Kabir spent ₹2, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  9. 9.12% of a number is 15. What is the number?
  10. 10.72 is 20% of ?
  11. 11.Isha spent ₹28, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  12. 12.Rohan spent ₹86, which is 50% of the pocket money. How much pocket money did Rohan have, in rupees?
  13. 13.40% of a number is 126. What is the number?
  14. 14.Arjun spent ₹25, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  15. 15.26 is 40% of ?
  16. 16.20% of a number is 77. What is the number?
  17. 17.75% of a number is 27. What is the number?
  18. 18.12% of a number is 45. What is the number?
  19. 19.25% of a number is 1. What is the number?
  20. 20.Ishaan spent ₹36, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  21. 21.86 is 25% of ?
  22. 22.33 is 10% of ?
  23. 23.Aarav spent ₹20, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  24. 24.Arjun spent ₹20, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  25. 25.Kabir spent ₹3, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  26. 26.12% of a number is 36. What is the number?
  27. 27.171 is 50% of ?
  28. 28.10% of a number is 24. What is the number?
  29. 29.15 is 15% of ?
  30. 30.69 is 20% of ?
  31. 31.Kabir spent ₹111, which is 30% of the pocket money. How much pocket money did Kabir have, in rupees?
  32. 32.12 is 25% of ?
  33. 33.20% of a number is 58. What is the number?
  34. 34.3 is 5% of ?
  35. 35.15% of a number is 9. What is the number?
  36. 36.Meera spent ₹92, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  37. 37.Kabir spent ₹78, which is 60% of the pocket money. How much pocket money did Kabir have, in rupees?
  38. 38.37 is 25% of ?
  39. 39.Aarav spent ₹87, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  40. 40.Sara spent ₹24, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?

Answer key

  1. 260
  2. 180
  3. 305
  4. 100
  5. 335
  6. 200
  7. 220
  8. 40
  9. 125
  10. 360
  11. 140
  12. 172
  13. 315
  14. 250
  15. 65
  16. 385
  17. 36
  18. 375
  19. 4
  20. 240
  21. 344
  22. 330
  23. 400
  24. 200
  25. 20
  26. 300
  27. 342
  28. 240
  29. 100
  30. 345
  31. 370
  32. 48
  33. 290
  34. 60
  35. 60
  36. 230
  37. 130
  38. 148
  39. 348
  40. 48

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