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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 427 · 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. 1.39 is 75% of ?
  2. 2.80% of a number is 124. What is the number?
  3. 3.42 is 60% of ?
  4. 4.10 is 5% of ?
  5. 5.20% of a number is 66. What is the number?
  6. 6.Rohan spent ₹276, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  7. 7.75% of a number is 60. What is the number?
  8. 8.Isha spent ₹99, which is 60% of the pocket money. How much pocket money did Isha have, in rupees?
  9. 9.Riya spent ₹128, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  10. 10.7 is 5% of ?
  11. 11.80% of a number is 300. What is the number?
  12. 12.Dev spent ₹272, which is 80% of the pocket money. How much pocket money did Dev have, in rupees?
  13. 13.50% of a number is 116. What is the number?
  14. 14.10% of a number is 30. What is the number?
  15. 15.Ishaan spent ₹15, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  16. 16.288 is 80% of ?
  17. 17.19 is 5% of ?
  18. 18.51 is 25% of ?
  19. 19.50% of a number is 141. What is the number?
  20. 20.Arjun spent ₹168, which is 75% of the pocket money. How much pocket money did Arjun have, in rupees?
  21. 21.30% of a number is 66. What is the number?
  22. 22.Anaya spent ₹14, which is 20% of the pocket money. How much pocket money did Anaya have, in rupees?
  23. 23.44 is 25% of ?
  24. 24.30% of a number is 78. What is the number?
  25. 25.20% of a number is 38. What is the number?
  26. 26.25% of a number is 42. What is the number?
  27. 27.48 is 12% of ?
  28. 28.40% of a number is 42. What is the number?
  29. 29.132 is 80% of ?
  30. 30.96 is 30% of ?
  31. 31.75 is 75% of ?
  32. 32.42 is 12% of ?
  33. 33.Anaya spent ₹46, which is 25% of the pocket money. How much pocket money did Anaya have, in rupees?
  34. 34.4 is 20% of ?
  35. 35.60% of a number is 21. What is the number?
  36. 36.Riya spent ₹27, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  37. 37.Rohan spent ₹6, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  38. 38.75% of a number is 48. What is the number?
  39. 39.Meera spent ₹159, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?
  40. 40.5% of a number is 1. What is the number?

Answer key

  1. 52
  2. 155
  3. 70
  4. 200
  5. 330
  6. 368
  7. 80
  8. 165
  9. 256
  10. 140
  11. 375
  12. 340
  13. 232
  14. 300
  15. 20
  16. 360
  17. 380
  18. 204
  19. 282
  20. 224
  21. 220
  22. 70
  23. 176
  24. 260
  25. 190
  26. 168
  27. 400
  28. 105
  29. 165
  30. 320
  31. 100
  32. 350
  33. 184
  34. 20
  35. 35
  36. 108
  37. 120
  38. 64
  39. 265
  40. 20

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