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Percentage lesson 9: Find the whole from a percent · Set 737 · 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. 1.210 is 60% of ?
  2. 2.Rohan spent ₹6, which is 12% of the pocket money. How much pocket money did Rohan have, in rupees?
  3. 3.130 is 40% of ?
  4. 4.73 is 50% of ?
  5. 5.20% of a number is 20. What is the number?
  6. 6.75% of a number is 252. What is the number?
  7. 7.6 is 75% of ?
  8. 8.12% of a number is 36. What is the number?
  9. 9.21 is 30% of ?
  10. 10.10% of a number is 23. What is the number?
  11. 11.34 is 10% of ?
  12. 12.13 is 20% of ?
  13. 13.Kabir spent ₹69, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  14. 14.60% of a number is 198. What is the number?
  15. 15.Meera spent ₹152, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  16. 16.25% of a number is 25. What is the number?
  17. 17.75% of a number is 18. What is the number?
  18. 18.Ishaan spent ₹48, which is 60% of the pocket money. How much pocket money did Ishaan have, in rupees?
  19. 19.12 is 40% of ?
  20. 20.10% of a number is 11. What is the number?
  21. 21.Sara spent ₹48, which is 15% of the pocket money. How much pocket money did Sara have, in rupees?
  22. 22.Kabir spent ₹4, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  23. 23.65 is 25% of ?
  24. 24.144 is 40% of ?
  25. 25.27 is 20% of ?
  26. 26.15% of a number is 18. What is the number?
  27. 27.232 is 80% of ?
  28. 28.75% of a number is 189. What is the number?
  29. 29.32 is 20% of ?
  30. 30.18 is 15% of ?
  31. 31.12% of a number is 3. What is the number?
  32. 32.20% of a number is 31. What is the number?
  33. 33.25% of a number is 10. What is the number?
  34. 34.5% of a number is 5. What is the number?
  35. 35.7 is 20% of ?
  36. 36.12% of a number is 21. What is the number?
  37. 37.25 is 10% of ?
  38. 38.60% of a number is 126. What is the number?
  39. 39.Ishaan spent ₹116, which is 40% of the pocket money. How much pocket money did Ishaan have, in rupees?
  40. 40.25% of a number is 66. What is the number?

Answer key

  1. 350
  2. 50
  3. 325
  4. 146
  5. 100
  6. 336
  7. 8
  8. 300
  9. 70
  10. 230
  11. 340
  12. 65
  13. 92
  14. 330
  15. 380
  16. 100
  17. 24
  18. 80
  19. 30
  20. 110
  21. 320
  22. 40
  23. 260
  24. 360
  25. 135
  26. 120
  27. 290
  28. 252
  29. 160
  30. 120
  31. 25
  32. 155
  33. 40
  34. 100
  35. 35
  36. 175
  37. 250
  38. 210
  39. 290
  40. 264

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