← Find the whole from a percent lesson New set →

Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 639 · 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. 1.15% of a number is 48. What is the number?
  2. 2.39 is 10% of ?
  3. 3.60 is 25% of ?
  4. 4.40% of a number is 46. What is the number?
  5. 5.60% of a number is 168. What is the number?
  6. 6.2 is 10% of ?
  7. 7.78 is 20% of ?
  8. 8.13 is 50% of ?
  9. 9.40% of a number is 108. What is the number?
  10. 10.2 is 5% of ?
  11. 11.72 is 20% of ?
  12. 12.24 is 12% of ?
  13. 13.Riya spent ₹279, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  14. 14.51 is 15% of ?
  15. 15.Dev spent ₹31, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  16. 16.20% of a number is 45. What is the number?
  17. 17.10 is 20% of ?
  18. 18.80% of a number is 128. What is the number?
  19. 19.Meera spent ₹27, which is 15% of the pocket money. How much pocket money did Meera have, in rupees?
  20. 20.Kabir spent ₹140, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  21. 21.62 is 50% of ?
  22. 22.Kabir spent ₹1, which is 25% of the pocket money. How much pocket money did Kabir have, in rupees?
  23. 23.145 is 50% of ?
  24. 24.Isha spent ₹1, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  25. 25.40% of a number is 70. What is the number?
  26. 26.80% of a number is 220. What is the number?
  27. 27.60 is 60% of ?
  28. 28.Sara spent ₹135, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  29. 29.20% of a number is 32. What is the number?
  30. 30.Riya spent ₹148, which is 40% of the pocket money. How much pocket money did Riya have, in rupees?
  31. 31.15% of a number is 18. What is the number?
  32. 32.49 is 25% of ?
  33. 33.Meera spent ₹11, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  34. 34.75% of a number is 54. What is the number?
  35. 35.36 is 10% of ?
  36. 36.60% of a number is 69. What is the number?
  37. 37.Rohan spent ₹52, which is 50% of the pocket money. How much pocket money did Rohan have, in rupees?
  38. 38.Ishaan spent ₹21, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  39. 39.60% of a number is 102. What is the number?
  40. 40.78 is 50% of ?

Answer key

  1. 320
  2. 390
  3. 240
  4. 115
  5. 280
  6. 20
  7. 390
  8. 26
  9. 270
  10. 40
  11. 360
  12. 200
  13. 372
  14. 340
  15. 124
  16. 225
  17. 50
  18. 160
  19. 180
  20. 175
  21. 124
  22. 4
  23. 290
  24. 5
  25. 175
  26. 275
  27. 100
  28. 270
  29. 160
  30. 370
  31. 120
  32. 196
  33. 44
  34. 72
  35. 360
  36. 115
  37. 104
  38. 28
  39. 170
  40. 156

Free percentage lessons, practice and worksheets at talentjr.in/how-to-calculate-percentage