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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 570 · 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 2. What is the number?
  2. 2.5% of a number is 6. What is the number?
  3. 3.10% of a number is 16. What is the number?
  4. 4.4 is 20% of ?
  5. 5.60% of a number is 219. What is the number?
  6. 6.Ishaan spent ₹16, which is 50% of the pocket money. How much pocket money did Ishaan have, in rupees?
  7. 7.30% of a number is 21. What is the number?
  8. 8.50% of a number is 91. What is the number?
  9. 9.Riya spent ₹5, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  10. 10.104 is 80% of ?
  11. 11.192 is 80% of ?
  12. 12.5% of a number is 3. What is the number?
  13. 13.15% of a number is 18. What is the number?
  14. 14.50% of a number is 171. What is the number?
  15. 15.Meera spent ₹189, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?
  16. 16.12% of a number is 21. What is the number?
  17. 17.54 is 30% of ?
  18. 18.28 is 10% of ?
  19. 19.Ishaan spent ₹98, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  20. 20.25% of a number is 10. What is the number?
  21. 21.Rohan spent ₹9, which is 12% of the pocket money. How much pocket money did Rohan have, in rupees?
  22. 22.Diya spent ₹51, which is 15% of the pocket money. How much pocket money did Diya have, in rupees?
  23. 23.Meera spent ₹16, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  24. 24.20% of a number is 20. What is the number?
  25. 25.36 is 12% of ?
  26. 26.Meera spent ₹159, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?
  27. 27.9 is 12% of ?
  28. 28.25% of a number is 49. What is the number?
  29. 29.Aarav spent ₹4, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  30. 30.15% of a number is 21. What is the number?
  31. 31.25% of a number is 81. What is the number?
  32. 32.Sara spent ₹21, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  33. 33.Kabir spent ₹188, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  34. 34.36 is 15% of ?
  35. 35.Sara spent ₹216, which is 80% of the pocket money. How much pocket money did Sara have, in rupees?
  36. 36.10% of a number is 33. What is the number?
  37. 37.1 is 20% of ?
  38. 38.20% of a number is 40. What is the number?
  39. 39.40% of a number is 100. What is the number?
  40. 40.36 is 80% of ?

Answer key

  1. 4
  2. 120
  3. 160
  4. 20
  5. 365
  6. 32
  7. 70
  8. 182
  9. 50
  10. 130
  11. 240
  12. 60
  13. 120
  14. 342
  15. 315
  16. 175
  17. 180
  18. 280
  19. 392
  20. 40
  21. 75
  22. 340
  23. 40
  24. 100
  25. 300
  26. 265
  27. 75
  28. 196
  29. 80
  30. 140
  31. 324
  32. 70
  33. 235
  34. 240
  35. 270
  36. 330
  37. 5
  38. 200
  39. 250
  40. 45

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