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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 210 · 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. 1.50% of a number is 85. What is the number?
  2. 2.184 is 80% of ?
  3. 3.10% of a number is 11. What is the number?
  4. 4.18 is 5% of ?
  5. 5.25% of a number is 7. What is the number?
  6. 6.36 is 15% of ?
  7. 7.28 is 20% of ?
  8. 8.18 is 30% of ?
  9. 9.30% of a number is 18. What is the number?
  10. 10.Dev spent ₹3, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  11. 11.172 is 80% of ?
  12. 12.21 is 15% of ?
  13. 13.Kabir spent ₹60, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  14. 14.15% of a number is 27. What is the number?
  15. 15.Kabir spent ₹123, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  16. 16.Sara spent ₹66, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  17. 17.15% of a number is 18. What is the number?
  18. 18.48 is 12% of ?
  19. 19.117 is 60% of ?
  20. 20.12% of a number is 45. What is the number?
  21. 21.12 is 10% of ?
  22. 22.9 is 10% of ?
  23. 23.20% of a number is 63. What is the number?
  24. 24.25% of a number is 26. What is the number?
  25. 25.34 is 50% of ?
  26. 26.57 is 15% of ?
  27. 27.10% of a number is 37. What is the number?
  28. 28.18 is 12% of ?
  29. 29.3 is 5% of ?
  30. 30.15% of a number is 21. What is the number?
  31. 31.Aarav spent ₹14, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  32. 32.10% of a number is 40. What is the number?
  33. 33.Meera spent ₹20, which is 80% of the pocket money. How much pocket money did Meera have, in rupees?
  34. 34.80% of a number is 312. What is the number?
  35. 35.Sara spent ₹8, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  36. 36.Arjun spent ₹18, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  37. 37.20% of a number is 6. What is the number?
  38. 38.25% of a number is 84. What is the number?
  39. 39.60% of a number is 228. What is the number?
  40. 40.Anaya spent ₹39, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?

Answer key

  1. 170
  2. 230
  3. 110
  4. 360
  5. 28
  6. 240
  7. 140
  8. 60
  9. 60
  10. 25
  11. 215
  12. 140
  13. 75
  14. 180
  15. 164
  16. 132
  17. 120
  18. 400
  19. 195
  20. 375
  21. 120
  22. 90
  23. 315
  24. 104
  25. 68
  26. 380
  27. 370
  28. 150
  29. 60
  30. 140
  31. 280
  32. 400
  33. 25
  34. 390
  35. 40
  36. 360
  37. 30
  38. 336
  39. 380
  40. 65

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