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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 767 · 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. 1.60% of a number is 105. What is the number?
  2. 2.12% of a number is 9. What is the number?
  3. 3.25% of a number is 19. What is the number?
  4. 4.3 is 15% of ?
  5. 5.60% of a number is 75. What is the number?
  6. 6.7 is 10% of ?
  7. 7.Ishaan spent ₹16, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  8. 8.30% of a number is 6. What is the number?
  9. 9.63 is 30% of ?
  10. 10.30% of a number is 84. What is the number?
  11. 11.27 is 50% of ?
  12. 12.5% of a number is 1. What is the number?
  13. 13.5 is 10% of ?
  14. 14.23 is 10% of ?
  15. 15.40 is 10% of ?
  16. 16.270 is 75% of ?
  17. 17.Kabir spent ₹225, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  18. 18.Sara spent ₹6, which is 15% of the pocket money. How much pocket money did Sara have, in rupees?
  19. 19.Sara spent ₹25, which is 10% of the pocket money. How much pocket money did Sara have, in rupees?
  20. 20.25% of a number is 9. What is the number?
  21. 21.29 is 25% of ?
  22. 22.Kabir spent ₹56, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  23. 23.75% of a number is 294. What is the number?
  24. 24.Sara spent ₹177, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  25. 25.114 is 30% of ?
  26. 26.50% of a number is 198. What is the number?
  27. 27.Anaya spent ₹1, which is 5% of the pocket money. How much pocket money did Anaya have, in rupees?
  28. 28.75% of a number is 138. What is the number?
  29. 29.10% of a number is 31. What is the number?
  30. 30.10% of a number is 30. What is the number?
  31. 31.60 is 15% of ?
  32. 32.Aarav spent ₹66, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  33. 33.36 is 15% of ?
  34. 34.132 is 80% of ?
  35. 35.5% of a number is 17. What is the number?
  36. 36.9 is 10% of ?
  37. 37.57 is 30% of ?
  38. 38.10% of a number is 16. What is the number?
  39. 39.5% of a number is 8. What is the number?
  40. 40.75% of a number is 279. What is the number?

Answer key

  1. 175
  2. 75
  3. 76
  4. 20
  5. 125
  6. 70
  7. 64
  8. 20
  9. 210
  10. 280
  11. 54
  12. 20
  13. 50
  14. 230
  15. 400
  16. 360
  17. 300
  18. 40
  19. 250
  20. 36
  21. 116
  22. 70
  23. 392
  24. 295
  25. 380
  26. 396
  27. 20
  28. 184
  29. 310
  30. 300
  31. 400
  32. 132
  33. 240
  34. 165
  35. 340
  36. 90
  37. 190
  38. 160
  39. 160
  40. 372

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