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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 28 · 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.

NameDateTime takenScore ___ / 40
  1. 1.12% of a number is 9. What is the number?
  2. 2.Diya spent ₹18, which is 15% of the pocket money. How much pocket money did Diya have, in rupees?
  3. 3.40% of a number is 20. What is the number?
  4. 4.54 is 75% of ?
  5. 5.10% of a number is 18. What is the number?
  6. 6.40% of a number is 78. What is the number?
  7. 7.Sara spent ₹135, which is 75% of the pocket money. How much pocket money did Sara have, in rupees?
  8. 8.20% of a number is 55. What is the number?
  9. 9.Dev spent ₹11, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  10. 10.50% of a number is 20. What is the number?
  11. 11.50% of a number is 171. What is the number?
  12. 12.25% of a number is 61. What is the number?
  13. 13.Dev spent ₹165, which is 50% of the pocket money. How much pocket money did Dev have, in rupees?
  14. 14.5 is 10% of ?
  15. 15.10% of a number is 25. What is the number?
  16. 16.60% of a number is 102. What is the number?
  17. 17.Kabir spent ₹126, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  18. 18.45 is 12% of ?
  19. 19.Arjun spent ₹24, which is 12% of the pocket money. How much pocket money did Arjun have, in rupees?
  20. 20.132 is 80% of ?
  21. 21.216 is 75% of ?
  22. 22.60% of a number is 213. What is the number?
  23. 23.36 is 10% of ?
  24. 24.123 is 60% of ?
  25. 25.5% of a number is 2. What is the number?
  26. 26.Aarav spent ₹69, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  27. 27.Diya spent ₹24, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  28. 28.50% of a number is 164. What is the number?
  29. 29.50% of a number is 124. What is the number?
  30. 30.Rohan spent ₹63, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  31. 31.12 is 5% of ?
  32. 32.9 is 5% of ?
  33. 33.12 is 20% of ?
  34. 34.30 is 15% of ?
  35. 35.5% of a number is 6. What is the number?
  36. 36.75% of a number is 210. What is the number?
  37. 37.Ishaan spent ₹24, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  38. 38.50% of a number is 52. What is the number?
  39. 39.18 is 40% of ?
  40. 40.60% of a number is 78. What is the number?

Answer key

  1. 75
  2. 120
  3. 50
  4. 72
  5. 180
  6. 195
  7. 180
  8. 275
  9. 220
  10. 40
  11. 342
  12. 244
  13. 330
  14. 50
  15. 250
  16. 170
  17. 168
  18. 375
  19. 200
  20. 165
  21. 288
  22. 355
  23. 360
  24. 205
  25. 40
  26. 138
  27. 30
  28. 328
  29. 248
  30. 252
  31. 240
  32. 180
  33. 60
  34. 200
  35. 120
  36. 280
  37. 200
  38. 104
  39. 45
  40. 130

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