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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 931 · 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. 1.1 is 10% of ?
  2. 2.Arjun spent ₹136, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  3. 3.60% of a number is 138. What is the number?
  4. 4.54 is 30% of ?
  5. 5.Sara spent ₹11, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  6. 6.204 is 80% of ?
  7. 7.36 is 15% of ?
  8. 8.3 is 12% of ?
  9. 9.20% of a number is 24. What is the number?
  10. 10.5% of a number is 10. What is the number?
  11. 11.Ishaan spent ₹31, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  12. 12.12% of a number is 15. What is the number?
  13. 13.Anaya spent ₹201, which is 75% of the pocket money. How much pocket money did Anaya have, in rupees?
  14. 14.Aarav spent ₹176, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  15. 15.90 is 40% of ?
  16. 16.5% of a number is 18. What is the number?
  17. 17.12% of a number is 6. What is the number?
  18. 18.30% of a number is 24. What is the number?
  19. 19.Aarav spent ₹27, which is 12% of the pocket money. How much pocket money did Aarav have, in rupees?
  20. 20.42 is 50% of ?
  21. 21.Aarav spent ₹78, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  22. 22.Aarav spent ₹36, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  23. 23.Arjun spent ₹106, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  24. 24.75% of a number is 96. What is the number?
  25. 25.Rohan spent ₹105, which is 30% of the pocket money. How much pocket money did Rohan have, in rupees?
  26. 26.15% of a number is 51. What is the number?
  27. 27.15 is 5% of ?
  28. 28.74 is 20% of ?
  29. 29.Arjun spent ₹154, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  30. 30.Dev spent ₹48, which is 15% of the pocket money. How much pocket money did Dev have, in rupees?
  31. 31.12% of a number is 42. What is the number?
  32. 32.75% of a number is 198. What is the number?
  33. 33.Diya spent ₹15, which is 15% of the pocket money. How much pocket money did Diya have, in rupees?
  34. 34.Meera spent ₹1, which is 5% of the pocket money. How much pocket money did Meera have, in rupees?
  35. 35.10% of a number is 29. What is the number?
  36. 36.75 is 75% of ?
  37. 37.207 is 75% of ?
  38. 38.Dev spent ₹11, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  39. 39.Dev spent ₹103, which is 50% of the pocket money. How much pocket money did Dev have, in rupees?
  40. 40.5% of a number is 1. What is the number?

Answer key

  1. 10
  2. 340
  3. 230
  4. 180
  5. 44
  6. 255
  7. 240
  8. 25
  9. 120
  10. 200
  11. 310
  12. 125
  13. 268
  14. 220
  15. 225
  16. 360
  17. 50
  18. 80
  19. 225
  20. 84
  21. 390
  22. 45
  23. 265
  24. 128
  25. 350
  26. 340
  27. 300
  28. 370
  29. 385
  30. 320
  31. 350
  32. 264
  33. 100
  34. 20
  35. 290
  36. 100
  37. 276
  38. 44
  39. 206
  40. 20

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