← Find the whole from a percent lesson New set →

Reverse Percentage Worksheet

Percentage lesson 9: Find the whole from a percent · Set 284 · 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. 1.42 is 12% of ?
  2. 2.15% of a number is 45. What is the number?
  3. 3.Riya spent ₹45, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  4. 4.Arjun spent ₹21, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  5. 5.15% of a number is 33. What is the number?
  6. 6.50% of a number is 107. What is the number?
  7. 7.30 is 10% of ?
  8. 8.9 is 50% of ?
  9. 9.5% of a number is 16. What is the number?
  10. 10.11 is 10% of ?
  11. 11.15% of a number is 15. What is the number?
  12. 12.102 is 30% of ?
  13. 13.80% of a number is 224. What is the number?
  14. 14.10 is 10% of ?
  15. 15.15 is 30% of ?
  16. 16.Rohan spent ₹18, which is 50% of the pocket money. How much pocket money did Rohan have, in rupees?
  17. 17.Aarav spent ₹100, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  18. 18.Dev spent ₹30, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?
  19. 19.64 is 20% of ?
  20. 20.Arjun spent ₹120, which is 80% of the pocket money. How much pocket money did Arjun have, in rupees?
  21. 21.Dev spent ₹36, which is 50% of the pocket money. How much pocket money did Dev have, in rupees?
  22. 22.Aarav spent ₹40, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  23. 23.50% of a number is 82. What is the number?
  24. 24.Aarav spent ₹20, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  25. 25.5% of a number is 4. What is the number?
  26. 26.15 is 10% of ?
  27. 27.199 is 50% of ?
  28. 28.72 is 30% of ?
  29. 29.Rohan spent ₹1, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  30. 30.40% of a number is 4. What is the number?
  31. 31.87 is 25% of ?
  32. 32.35 is 50% of ?
  33. 33.35 is 10% of ?
  34. 34.Aarav spent ₹86, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  35. 35.5% of a number is 17. What is the number?
  36. 36.75% of a number is 285. What is the number?
  37. 37.80% of a number is 312. What is the number?
  38. 38.15% of a number is 60. What is the number?
  39. 39.56 is 80% of ?
  40. 40.47 is 20% of ?

Answer key

  1. 350
  2. 300
  3. 300
  4. 105
  5. 220
  6. 214
  7. 300
  8. 18
  9. 320
  10. 110
  11. 100
  12. 340
  13. 280
  14. 100
  15. 50
  16. 36
  17. 125
  18. 50
  19. 320
  20. 150
  21. 72
  22. 400
  23. 164
  24. 400
  25. 80
  26. 150
  27. 398
  28. 240
  29. 20
  30. 10
  31. 348
  32. 70
  33. 350
  34. 344
  35. 340
  36. 380
  37. 390
  38. 400
  39. 70
  40. 235

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