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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 866 · 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 ₹200, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  2. 2.80% of a number is 212. What is the number?
  3. 3.Diya spent ₹33, which is 60% of the pocket money. How much pocket money did Diya have, in rupees?
  4. 4.1 is 5% of ?
  5. 5.99 is 25% of ?
  6. 6.26 is 20% of ?
  7. 7.10% of a number is 9. What is the number?
  8. 8.Ishaan spent ₹27, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  9. 9.40% of a number is 26. What is the number?
  10. 10.Sara spent ₹60, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  11. 11.4 is 5% of ?
  12. 12.130 is 40% of ?
  13. 13.11 is 10% of ?
  14. 14.Ishaan spent ₹21, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  15. 15.Diya spent ₹135, which is 60% of the pocket money. How much pocket money did Diya have, in rupees?
  16. 16.Diya spent ₹14, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  17. 17.10% of a number is 19. What is the number?
  18. 18.Sara spent ₹74, which is 40% of the pocket money. How much pocket money did Sara have, in rupees?
  19. 19.Aarav spent ₹69, which is 75% of the pocket money. How much pocket money did Aarav have, in rupees?
  20. 20.25% of a number is 16. What is the number?
  21. 21.25% of a number is 65. What is the number?
  22. 22.30 is 10% of ?
  23. 23.Diya spent ₹39, which is 12% of the pocket money. How much pocket money did Diya have, in rupees?
  24. 24.Anaya spent ₹70, which is 20% of the pocket money. How much pocket money did Anaya have, in rupees?
  25. 25.46 is 40% of ?
  26. 26.222 is 75% of ?
  27. 27.Isha spent ₹15, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  28. 28.Riya spent ₹52, which is 80% of the pocket money. How much pocket money did Riya have, in rupees?
  29. 29.60% of a number is 27. What is the number?
  30. 30.Sara spent ₹4, which is 5% of the pocket money. How much pocket money did Sara have, in rupees?
  31. 31.Diya spent ₹160, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  32. 32.25% of a number is 34. What is the number?
  33. 33.50% of a number is 119. What is the number?
  34. 34.18 is 75% of ?
  35. 35.50% of a number is 97. What is the number?
  36. 36.117 is 30% of ?
  37. 37.75% of a number is 300. What is the number?
  38. 38.78 is 20% of ?
  39. 39.5% of a number is 3. What is the number?
  40. 40.99 is 75% of ?

Answer key

  1. 250
  2. 265
  3. 55
  4. 20
  5. 396
  6. 130
  7. 90
  8. 180
  9. 65
  10. 300
  11. 80
  12. 325
  13. 110
  14. 175
  15. 225
  16. 70
  17. 190
  18. 185
  19. 92
  20. 64
  21. 260
  22. 300
  23. 325
  24. 350
  25. 115
  26. 296
  27. 75
  28. 65
  29. 45
  30. 80
  31. 320
  32. 136
  33. 238
  34. 24
  35. 194
  36. 390
  37. 400
  38. 390
  39. 60
  40. 132

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