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Percentage lesson 9: Find the whole from a percent · Set 402 · 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.Kabir spent ₹4, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  2. 2.31 is 10% of ?
  3. 3.4 is 5% of ?
  4. 4.18 is 25% of ?
  5. 5.42 is 60% of ?
  6. 6.Anaya spent ₹32, which is 10% of the pocket money. How much pocket money did Anaya have, in rupees?
  7. 7.30% of a number is 66. What is the number?
  8. 8.6 is 12% of ?
  9. 9.30% of a number is 105. What is the number?
  10. 10.36 is 15% of ?
  11. 11.12 is 15% of ?
  12. 12.3 is 25% of ?
  13. 13.Dev spent ₹36, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  14. 14.20% of a number is 62. What is the number?
  15. 15.50% of a number is 53. What is the number?
  16. 16.48 is 50% of ?
  17. 17.Aarav spent ₹129, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  18. 18.105 is 60% of ?
  19. 19.186 is 75% of ?
  20. 20.2 is 10% of ?
  21. 21.Meera spent ₹210, which is 75% of the pocket money. How much pocket money did Meera have, in rupees?
  22. 22.45 is 12% of ?
  23. 23.198 is 50% of ?
  24. 24.15% of a number is 39. What is the number?
  25. 25.10% of a number is 11. What is the number?
  26. 26.280 is 80% of ?
  27. 27.15% of a number is 54. What is the number?
  28. 28.Diya spent ₹39, which is 30% of the pocket money. How much pocket money did Diya have, in rupees?
  29. 29.39 is 75% of ?
  30. 30.8 is 5% of ?
  31. 31.Dev spent ₹72, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  32. 32.33 is 30% of ?
  33. 33.119 is 50% of ?
  34. 34.66 is 50% of ?
  35. 35.20% of a number is 5. What is the number?
  36. 36.Aarav spent ₹4, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  37. 37.71 is 50% of ?
  38. 38.60% of a number is 117. What is the number?
  39. 39.Aarav spent ₹19, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  40. 40.Dev spent ₹45, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?

Answer key

  1. 80
  2. 310
  3. 80
  4. 72
  5. 70
  6. 320
  7. 220
  8. 50
  9. 350
  10. 240
  11. 80
  12. 12
  13. 120
  14. 310
  15. 106
  16. 96
  17. 258
  18. 175
  19. 248
  20. 20
  21. 280
  22. 375
  23. 396
  24. 260
  25. 110
  26. 350
  27. 360
  28. 130
  29. 52
  30. 160
  31. 240
  32. 110
  33. 238
  34. 132
  35. 25
  36. 5
  37. 142
  38. 195
  39. 38
  40. 75

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