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Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 180 · 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. 1.20% of a number is 61. What is the number?
  2. 2.50% of a number is 109. What is the number?
  3. 3.144 is 40% of ?
  4. 4.112 is 40% of ?
  5. 5.80% of a number is 44. What is the number?
  6. 6.50% of a number is 119. What is the number?
  7. 7.15% of a number is 6. What is the number?
  8. 8.15% of a number is 24. What is the number?
  9. 9.19 is 5% of ?
  10. 10.12% of a number is 36. What is the number?
  11. 11.10% of a number is 12. What is the number?
  12. 12.Sara spent ₹57, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  13. 13.78 is 30% of ?
  14. 14.75% of a number is 27. What is the number?
  15. 15.191 is 50% of ?
  16. 16.15% of a number is 42. What is the number?
  17. 17.Riya spent ₹30, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  18. 18.Diya spent ₹9, which is 12% of the pocket money. How much pocket money did Diya have, in rupees?
  19. 19.20% of a number is 49. What is the number?
  20. 20.30% of a number is 9. What is the number?
  21. 21.74 is 50% of ?
  22. 22.Dev spent ₹113, which is 50% of the pocket money. How much pocket money did Dev have, in rupees?
  23. 23.Isha spent ₹12, which is 80% of the pocket money. How much pocket money did Isha have, in rupees?
  24. 24.25% of a number is 17. What is the number?
  25. 25.30 is 50% of ?
  26. 26.Anaya spent ₹96, which is 30% of the pocket money. How much pocket money did Anaya have, in rupees?
  27. 27.Arjun spent ₹33, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  28. 28.129 is 75% of ?
  29. 29.51 is 15% of ?
  30. 30.Diya spent ₹69, which is 75% of the pocket money. How much pocket money did Diya have, in rupees?
  31. 31.20% of a number is 54. What is the number?
  32. 32.10% of a number is 37. What is the number?
  33. 33.1 is 10% of ?
  34. 34.Rohan spent ₹62, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  35. 35.7 is 10% of ?
  36. 36.Kabir spent ₹17, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  37. 37.12% of a number is 27. What is the number?
  38. 38.Dev spent ₹57, which is 75% of the pocket money. How much pocket money did Dev have, in rupees?
  39. 39.20% of a number is 67. What is the number?
  40. 40.30% of a number is 15. What is the number?

Answer key

  1. 305
  2. 218
  3. 360
  4. 280
  5. 55
  6. 238
  7. 40
  8. 160
  9. 380
  10. 300
  11. 120
  12. 285
  13. 260
  14. 36
  15. 382
  16. 280
  17. 250
  18. 75
  19. 245
  20. 30
  21. 148
  22. 226
  23. 15
  24. 68
  25. 60
  26. 320
  27. 110
  28. 172
  29. 340
  30. 92
  31. 270
  32. 370
  33. 10
  34. 310
  35. 70
  36. 170
  37. 225
  38. 76
  39. 335
  40. 50

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