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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 325 · 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. 1.10% of a number is 29. What is the number?
  2. 2.20% of a number is 7. What is the number?
  3. 3.76 is 20% of ?
  4. 4.25% of a number is 92. What is the number?
  5. 5.158 is 40% of ?
  6. 6.Sara spent ₹31, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  7. 7.219 is 60% of ?
  8. 8.Arjun spent ₹204, which is 60% of the pocket money. How much pocket money did Arjun have, in rupees?
  9. 9.Meera spent ₹114, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  10. 10.Anaya spent ₹16, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  11. 11.60% of a number is 240. What is the number?
  12. 12.63 is 25% of ?
  13. 13.50% of a number is 166. What is the number?
  14. 14.Riya spent ₹3, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  15. 15.30% of a number is 72. What is the number?
  16. 16.Ishaan spent ₹2, which is 20% of the pocket money. How much pocket money did Ishaan have, in rupees?
  17. 17.5% of a number is 11. What is the number?
  18. 18.10% of a number is 6. What is the number?
  19. 19.Dev spent ₹21, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  20. 20.53 is 50% of ?
  21. 21.31 is 10% of ?
  22. 22.15% of a number is 30. What is the number?
  23. 23.40% of a number is 118. What is the number?
  24. 24.6 is 5% of ?
  25. 25.50% of a number is 140. What is the number?
  26. 26.75% of a number is 15. What is the number?
  27. 27.80% of a number is 312. What is the number?
  28. 28.Meera spent ₹42, which is 15% of the pocket money. How much pocket money did Meera have, in rupees?
  29. 29.12% of a number is 42. What is the number?
  30. 30.Isha spent ₹26, which is 40% of the pocket money. How much pocket money did Isha have, in rupees?
  31. 31.30% of a number is 54. What is the number?
  32. 32.3 is 10% of ?
  33. 33.48 is 12% of ?
  34. 34.90 is 50% of ?
  35. 35.20% of a number is 51. What is the number?
  36. 36.20% of a number is 4. What is the number?
  37. 37.5% of a number is 10. What is the number?
  38. 38.78 is 50% of ?
  39. 39.60% of a number is 63. What is the number?
  40. 40.Dev spent ₹92, which is 80% of the pocket money. How much pocket money did Dev have, in rupees?

Answer key

  1. 290
  2. 35
  3. 380
  4. 368
  5. 395
  6. 124
  7. 365
  8. 340
  9. 285
  10. 40
  11. 400
  12. 252
  13. 332
  14. 25
  15. 240
  16. 10
  17. 220
  18. 60
  19. 175
  20. 106
  21. 310
  22. 200
  23. 295
  24. 120
  25. 280
  26. 20
  27. 390
  28. 280
  29. 350
  30. 65
  31. 180
  32. 30
  33. 400
  34. 180
  35. 255
  36. 20
  37. 200
  38. 156
  39. 105
  40. 115

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