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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 979 · 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.Rohan spent ₹8, which is 10% of the pocket money. How much pocket money did Rohan have, in rupees?
  2. 2.15% of a number is 48. What is the number?
  3. 3.10% of a number is 9. What is the number?
  4. 4.Anaya spent ₹106, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  5. 5.45 is 75% of ?
  6. 6.Arjun spent ₹30, which is 60% of the pocket money. How much pocket money did Arjun have, in rupees?
  7. 7.15% of a number is 21. What is the number?
  8. 8.85 is 25% of ?
  9. 9.192 is 50% of ?
  10. 10.40% of a number is 30. What is the number?
  11. 11.Dev spent ₹90, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?
  12. 12.Aarav spent ₹9, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  13. 13.Riya spent ₹196, which is 80% of the pocket money. How much pocket money did Riya have, in rupees?
  14. 14.Sara spent ₹105, which is 75% of the pocket money. How much pocket money did Sara have, in rupees?
  15. 15.5% of a number is 3. What is the number?
  16. 16.15 is 10% of ?
  17. 17.Arjun spent ₹2, which is 50% of the pocket money. How much pocket money did Arjun have, in rupees?
  18. 18.Rohan spent ₹24, which is 30% of the pocket money. How much pocket money did Rohan have, in rupees?
  19. 19.Meera spent ₹40, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  20. 20.108 is 30% of ?
  21. 21.Rohan spent ₹288, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  22. 22.40% of a number is 160. What is the number?
  23. 23.Riya spent ₹18, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  24. 24.54 is 30% of ?
  25. 25.Anaya spent ₹28, which is 10% of the pocket money. How much pocket money did Anaya have, in rupees?
  26. 26.Dev spent ₹18, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  27. 27.6 is 12% of ?
  28. 28.60% of a number is 204. What is the number?
  29. 29.80% of a number is 16. What is the number?
  30. 30.50% of a number is 46. What is the number?
  31. 31.36 is 12% of ?
  32. 32.5% of a number is 10. What is the number?
  33. 33.Arjun spent ₹27, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  34. 34.80% of a number is 320. What is the number?
  35. 35.Anaya spent ₹45, which is 15% of the pocket money. How much pocket money did Anaya have, in rupees?
  36. 36.Rohan spent ₹70, which is 40% of the pocket money. How much pocket money did Rohan have, in rupees?
  37. 37.12% of a number is 15. What is the number?
  38. 38.Riya spent ₹7, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  39. 39.Kabir spent ₹159, which is 60% of the pocket money. How much pocket money did Kabir have, in rupees?
  40. 40.Riya spent ₹64, which is 40% of the pocket money. How much pocket money did Riya have, in rupees?

Answer key

  1. 80
  2. 320
  3. 90
  4. 265
  5. 60
  6. 50
  7. 140
  8. 340
  9. 384
  10. 75
  11. 150
  12. 90
  13. 245
  14. 140
  15. 60
  16. 150
  17. 4
  18. 80
  19. 100
  20. 360
  21. 384
  22. 400
  23. 180
  24. 180
  25. 280
  26. 360
  27. 50
  28. 340
  29. 20
  30. 92
  31. 300
  32. 200
  33. 180
  34. 400
  35. 300
  36. 175
  37. 125
  38. 140
  39. 265
  40. 160

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