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Percentage lesson 9: Find the whole from a percent · Set 377 · 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.Aarav spent ₹93, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  2. 2.15% of a number is 3. What is the number?
  3. 3.30 is 60% of ?
  4. 4.40% of a number is 4. What is the number?
  5. 5.5% of a number is 9. What is the number?
  6. 6.13 is 5% of ?
  7. 7.25% of a number is 86. What is the number?
  8. 8.30% of a number is 33. What is the number?
  9. 9.Rohan spent ₹95, which is 50% of the pocket money. How much pocket money did Rohan have, in rupees?
  10. 10.Dev spent ₹66, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  11. 11.30% of a number is 78. What is the number?
  12. 12.50 is 40% of ?
  13. 13.6 is 40% of ?
  14. 14.Aarav spent ₹15, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  15. 15.15% of a number is 36. What is the number?
  16. 16.10% of a number is 4. What is the number?
  17. 17.Riya spent ₹72, which is 30% of the pocket money. How much pocket money did Riya have, in rupees?
  18. 18.28 is 25% of ?
  19. 19.12 is 10% of ?
  20. 20.75% of a number is 69. What is the number?
  21. 21.75% of a number is 291. What is the number?
  22. 22.5% of a number is 20. What is the number?
  23. 23.Isha spent ₹210, which is 75% of the pocket money. How much pocket money did Isha have, in rupees?
  24. 24.50% of a number is 122. What is the number?
  25. 25.10% of a number is 19. What is the number?
  26. 26.72 is 50% of ?
  27. 27.20% of a number is 56. What is the number?
  28. 28.Dev spent ₹40, which is 40% of the pocket money. How much pocket money did Dev have, in rupees?
  29. 29.50% of a number is 40. What is the number?
  30. 30.3 is 12% of ?
  31. 31.30% of a number is 63. What is the number?
  32. 32.60% of a number is 171. What is the number?
  33. 33.40% of a number is 64. What is the number?
  34. 34.50% of a number is 11. What is the number?
  35. 35.Ishaan spent ₹7, which is 20% of the pocket money. How much pocket money did Ishaan have, in rupees?
  36. 36.75% of a number is 36. What is the number?
  37. 37.Sara spent ₹228, which is 80% of the pocket money. How much pocket money did Sara have, in rupees?
  38. 38.80% of a number is 96. What is the number?
  39. 39.Aarav spent ₹1, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  40. 40.5% of a number is 12. What is the number?

Answer key

  1. 372
  2. 20
  3. 50
  4. 10
  5. 180
  6. 260
  7. 344
  8. 110
  9. 190
  10. 220
  11. 260
  12. 125
  13. 15
  14. 100
  15. 240
  16. 40
  17. 240
  18. 112
  19. 120
  20. 92
  21. 388
  22. 400
  23. 280
  24. 244
  25. 190
  26. 144
  27. 280
  28. 100
  29. 80
  30. 25
  31. 210
  32. 285
  33. 160
  34. 22
  35. 35
  36. 48
  37. 285
  38. 120
  39. 10
  40. 240

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