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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 962 · 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. 1.40% of a number is 102. What is the number?
  2. 2.10% of a number is 31. What is the number?
  3. 3.80% of a number is 96. What is the number?
  4. 4.1 is 50% of ?
  5. 5.69 is 30% of ?
  6. 6.10% of a number is 20. What is the number?
  7. 7.Meera spent ₹24, which is 12% of the pocket money. How much pocket money did Meera have, in rupees?
  8. 8.Meera spent ₹70, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  9. 9.160 is 80% of ?
  10. 10.120 is 30% of ?
  11. 11.Diya spent ₹156, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  12. 12.134 is 50% of ?
  13. 13.40% of a number is 54. What is the number?
  14. 14.25% of a number is 23. What is the number?
  15. 15.12% of a number is 24. What is the number?
  16. 16.Rohan spent ₹27, which is 12% of the pocket money. How much pocket money did Rohan have, in rupees?
  17. 17.Kabir spent ₹15, which is 25% of the pocket money. How much pocket money did Kabir have, in rupees?
  18. 18.Ishaan spent ₹26, which is 40% of the pocket money. How much pocket money did Ishaan have, in rupees?
  19. 19.Dev spent ₹200, which is 50% of the pocket money. How much pocket money did Dev have, in rupees?
  20. 20.Ishaan spent ₹11, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  21. 21.276 is 75% of ?
  22. 22.Isha spent ₹52, which is 80% of the pocket money. How much pocket money did Isha have, in rupees?
  23. 23.Sara spent ₹45, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  24. 24.Anaya spent ₹246, which is 75% of the pocket money. How much pocket money did Anaya have, in rupees?
  25. 25.Dev spent ₹4, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  26. 26.69 is 60% of ?
  27. 27.Sara spent ₹5, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  28. 28.10% of a number is 26. What is the number?
  29. 29.Rohan spent ₹13, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  30. 30.20% of a number is 77. What is the number?
  31. 31.Kabir spent ₹108, which is 30% of the pocket money. How much pocket money did Kabir have, in rupees?
  32. 32.Arjun spent ₹44, which is 25% of the pocket money. How much pocket money did Arjun have, in rupees?
  33. 33.Aarav spent ₹108, which is 40% of the pocket money. How much pocket money did Aarav have, in rupees?
  34. 34.78 is 60% of ?
  35. 35.Diya spent ₹228, which is 75% of the pocket money. How much pocket money did Diya have, in rupees?
  36. 36.45 is 15% of ?
  37. 37.75 is 20% of ?
  38. 38.Riya spent ₹32, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  39. 39.20% of a number is 57. What is the number?
  40. 40.15% of a number is 51. What is the number?

Answer key

  1. 255
  2. 310
  3. 120
  4. 2
  5. 230
  6. 200
  7. 200
  8. 280
  9. 200
  10. 400
  11. 390
  12. 268
  13. 135
  14. 92
  15. 200
  16. 225
  17. 60
  18. 65
  19. 400
  20. 110
  21. 368
  22. 65
  23. 150
  24. 328
  25. 40
  26. 115
  27. 20
  28. 260
  29. 260
  30. 385
  31. 360
  32. 176
  33. 270
  34. 130
  35. 304
  36. 300
  37. 375
  38. 64
  39. 285
  40. 340

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