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Percentage lesson 9: Find the whole from a percent · Set 543 · 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.Sara spent ₹69, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  2. 2.19 is 5% of ?
  3. 3.30% of a number is 54. What is the number?
  4. 4.20% of a number is 41. What is the number?
  5. 5.Meera spent ₹132, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?
  6. 6.Meera spent ₹80, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  7. 7.Isha spent ₹17, which is 10% of the pocket money. How much pocket money did Isha have, in rupees?
  8. 8.Kabir spent ₹96, which is 40% of the pocket money. How much pocket money did Kabir have, in rupees?
  9. 9.Kabir spent ₹96, which is 25% of the pocket money. How much pocket money did Kabir have, in rupees?
  10. 10.30 is 10% of ?
  11. 11.50% of a number is 150. What is the number?
  12. 12.12% of a number is 6. What is the number?
  13. 13.3 is 5% of ?
  14. 14.Sara spent ₹9, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  15. 15.5 is 5% of ?
  16. 16.8 is 40% of ?
  17. 17.Aarav spent ₹28, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  18. 18.Diya spent ₹27, which is 10% of the pocket money. How much pocket money did Diya have, in rupees?
  19. 19.15% of a number is 9. What is the number?
  20. 20.Riya spent ₹116, which is 80% of the pocket money. How much pocket money did Riya have, in rupees?
  21. 21.75% of a number is 180. What is the number?
  22. 22.5% of a number is 10. What is the number?
  23. 23.87 is 30% of ?
  24. 24.6 is 10% of ?
  25. 25.50% of a number is 11. What is the number?
  26. 26.27 is 15% of ?
  27. 27.33 is 15% of ?
  28. 28.100 is 40% of ?
  29. 29.60% of a number is 60. What is the number?
  30. 30.Aarav spent ₹80, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  31. 31.12% of a number is 24. What is the number?
  32. 32.12% of a number is 15. What is the number?
  33. 33.Arjun spent ₹29, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  34. 34.10% of a number is 35. What is the number?
  35. 35.50% of a number is 66. What is the number?
  36. 36.10% of a number is 13. What is the number?
  37. 37.28 is 10% of ?
  38. 38.80% of a number is 160. What is the number?
  39. 39.Rohan spent ₹122, which is 40% of the pocket money. How much pocket money did Rohan have, in rupees?
  40. 40.20% of a number is 8. What is the number?

Answer key

  1. 276
  2. 380
  3. 180
  4. 205
  5. 220
  6. 320
  7. 170
  8. 240
  9. 384
  10. 300
  11. 300
  12. 50
  13. 60
  14. 36
  15. 100
  16. 20
  17. 56
  18. 270
  19. 60
  20. 145
  21. 240
  22. 200
  23. 290
  24. 60
  25. 22
  26. 180
  27. 220
  28. 250
  29. 100
  30. 160
  31. 200
  32. 125
  33. 290
  34. 350
  35. 132
  36. 130
  37. 280
  38. 200
  39. 305
  40. 40

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