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Percentage lesson 9: Find the whole from a percent · Set 273 · 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. 1.25% of a number is 10. What is the number?
  2. 2.9 is 75% of ?
  3. 3.Meera spent ₹9, which is 12% of the pocket money. How much pocket money did Meera have, in rupees?
  4. 4.80% of a number is 228. What is the number?
  5. 5.Meera spent ₹8, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  6. 6.Arjun spent ₹18, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  7. 7.204 is 60% of ?
  8. 8.15% of a number is 12. What is the number?
  9. 9.25 is 20% of ?
  10. 10.72 is 25% of ?
  11. 11.40% of a number is 2. What is the number?
  12. 12.25% of a number is 7. What is the number?
  13. 13.3 is 12% of ?
  14. 14.3 is 10% of ?
  15. 15.24 is 15% of ?
  16. 16.105 is 60% of ?
  17. 17.18 is 12% of ?
  18. 18.3 is 15% of ?
  19. 19.Kabir spent ₹6, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  20. 20.Arjun spent ₹16, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  21. 21.99 is 30% of ?
  22. 22.Dev spent ₹37, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  23. 23.Arjun spent ₹228, which is 75% of the pocket money. How much pocket money did Arjun have, in rupees?
  24. 24.60% of a number is 12. What is the number?
  25. 25.60% of a number is 156. What is the number?
  26. 26.59 is 50% of ?
  27. 27.25% of a number is 38. What is the number?
  28. 28.50% of a number is 49. What is the number?
  29. 29.66 is 30% of ?
  30. 30.75% of a number is 84. What is the number?
  31. 31.Dev spent ₹22, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  32. 32.Kabir spent ₹36, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  33. 33.60% of a number is 51. What is the number?
  34. 34.82 is 40% of ?
  35. 35.40% of a number is 128. What is the number?
  36. 36.27 is 12% of ?
  37. 37.Rohan spent ₹8, which is 5% of the pocket money. How much pocket money did Rohan have, in rupees?
  38. 38.40% of a number is 156. What is the number?
  39. 39.24 is 75% of ?
  40. 40.123 is 60% of ?

Answer key

  1. 40
  2. 12
  3. 75
  4. 285
  5. 40
  6. 120
  7. 340
  8. 80
  9. 125
  10. 288
  11. 5
  12. 28
  13. 25
  14. 30
  15. 160
  16. 175
  17. 150
  18. 20
  19. 40
  20. 320
  21. 330
  22. 148
  23. 304
  24. 20
  25. 260
  26. 118
  27. 152
  28. 98
  29. 220
  30. 112
  31. 88
  32. 240
  33. 85
  34. 205
  35. 320
  36. 225
  37. 160
  38. 390
  39. 32
  40. 205

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