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Percentage lesson 9: Find the whole from a percent · Set 513 · 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. 1.20% of a number is 30. What is the number?
  2. 2.25% of a number is 3. What is the number?
  3. 3.Ishaan spent ₹7, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  4. 4.18 is 25% of ?
  5. 5.200 is 80% of ?
  6. 6.Isha spent ₹56, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  7. 7.84 is 80% of ?
  8. 8.15 is 12% of ?
  9. 9.234 is 60% of ?
  10. 10.Isha spent ₹10, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  11. 11.50% of a number is 92. What is the number?
  12. 12.Sara spent ₹9, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  13. 13.75% of a number is 66. What is the number?
  14. 14.5% of a number is 15. What is the number?
  15. 15.49 is 25% of ?
  16. 16.15% of a number is 24. What is the number?
  17. 17.25% of a number is 46. What is the number?
  18. 18.10% of a number is 15. What is the number?
  19. 19.10% of a number is 27. What is the number?
  20. 20.216 is 75% of ?
  21. 21.60% of a number is 3. What is the number?
  22. 22.50% of a number is 126. What is the number?
  23. 23.22 is 10% of ?
  24. 24.15% of a number is 60. What is the number?
  25. 25.156 is 80% of ?
  26. 26.10% of a number is 39. What is the number?
  27. 27.39 is 25% of ?
  28. 28.Meera spent ₹3, which is 5% of the pocket money. How much pocket money did Meera have, in rupees?
  29. 29.Aarav spent ₹237, which is 60% of the pocket money. How much pocket money did Aarav have, in rupees?
  30. 30.20% of a number is 19. What is the number?
  31. 31.90 is 30% of ?
  32. 32.Sara spent ₹57, which is 15% of the pocket money. How much pocket money did Sara have, in rupees?
  33. 33.60% of a number is 96. What is the number?
  34. 34.Dev spent ₹39, which is 15% of the pocket money. How much pocket money did Dev have, in rupees?
  35. 35.40% of a number is 152. What is the number?
  36. 36.2 is 10% of ?
  37. 37.33 is 12% of ?
  38. 38.75% of a number is 69. What is the number?
  39. 39.Ishaan spent ₹48, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  40. 40.15% of a number is 3. What is the number?

Answer key

  1. 150
  2. 12
  3. 70
  4. 72
  5. 250
  6. 224
  7. 105
  8. 125
  9. 390
  10. 200
  11. 184
  12. 15
  13. 88
  14. 300
  15. 196
  16. 160
  17. 184
  18. 150
  19. 270
  20. 288
  21. 5
  22. 252
  23. 220
  24. 400
  25. 195
  26. 390
  27. 156
  28. 60
  29. 395
  30. 95
  31. 300
  32. 380
  33. 160
  34. 260
  35. 380
  36. 20
  37. 275
  38. 92
  39. 320
  40. 20

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