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Percentage lesson 9: Find the whole from a percent · Set 978 · 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 ₹36, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  2. 2.105 is 50% of ?
  3. 3.Rohan spent ₹168, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  4. 4.Meera spent ₹56, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  5. 5.Aarav spent ₹140, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  6. 6.150 is 75% of ?
  7. 7.Ishaan spent ₹138, which is 60% of the pocket money. How much pocket money did Ishaan have, in rupees?
  8. 8.10% of a number is 34. What is the number?
  9. 9.18 is 15% of ?
  10. 10.24 is 20% of ?
  11. 11.Ishaan spent ₹69, which is 30% of the pocket money. How much pocket money did Ishaan have, in rupees?
  12. 12.10% of a number is 16. What is the number?
  13. 13.75% of a number is 204. What is the number?
  14. 14.5% of a number is 8. What is the number?
  15. 15.Sara spent ₹6, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  16. 16.40% of a number is 72. What is the number?
  17. 17.25% of a number is 97. What is the number?
  18. 18.15% of a number is 12. What is the number?
  19. 19.20% of a number is 7. What is the number?
  20. 20.Riya spent ₹7, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  21. 21.Isha spent ₹7, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  22. 22.12 is 12% of ?
  23. 23.10% of a number is 23. What is the number?
  24. 24.30% of a number is 51. What is the number?
  25. 25.Riya spent ₹18, which is 12% of the pocket money. How much pocket money did Riya have, in rupees?
  26. 26.75% of a number is 87. What is the number?
  27. 27.80% of a number is 52. What is the number?
  28. 28.30 is 15% of ?
  29. 29.80% of a number is 4. What is the number?
  30. 30.240 is 60% of ?
  31. 31.3 is 10% of ?
  32. 32.Diya spent ₹50, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  33. 33.15% of a number is 48. What is the number?
  34. 34.40% of a number is 90. What is the number?
  35. 35.25% of a number is 12. What is the number?
  36. 36.60 is 25% of ?
  37. 37.20% of a number is 69. What is the number?
  38. 38.Anaya spent ₹128, which is 80% of the pocket money. How much pocket money did Anaya have, in rupees?
  39. 39.51 is 20% of ?
  40. 40.40% of a number is 18. What is the number?

Answer key

  1. 240
  2. 210
  3. 210
  4. 112
  5. 175
  6. 200
  7. 230
  8. 340
  9. 120
  10. 120
  11. 230
  12. 160
  13. 272
  14. 160
  15. 20
  16. 180
  17. 388
  18. 80
  19. 35
  20. 70
  21. 140
  22. 100
  23. 230
  24. 170
  25. 150
  26. 116
  27. 65
  28. 200
  29. 5
  30. 400
  31. 30
  32. 125
  33. 320
  34. 225
  35. 48
  36. 240
  37. 345
  38. 160
  39. 255
  40. 45

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