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Percentage lesson 9: Find the whole from a percent · Set 452 · 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. 1.12% of a number is 15. What is the number?
  2. 2.Meera spent ₹101, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  3. 3.40% of a number is 138. What is the number?
  4. 4.8 is 80% of ?
  5. 5.80% of a number is 276. What is the number?
  6. 6.69 is 75% of ?
  7. 7.30% of a number is 21. What is the number?
  8. 8.30% of a number is 72. What is the number?
  9. 9.Isha spent ₹69, which is 75% of the pocket money. How much pocket money did Isha have, in rupees?
  10. 10.40% of a number is 150. What is the number?
  11. 11.17 is 5% of ?
  12. 12.20% of a number is 42. What is the number?
  13. 13.37 is 10% of ?
  14. 14.15% of a number is 15. What is the number?
  15. 15.23 is 50% of ?
  16. 16.12% of a number is 18. What is the number?
  17. 17.5% of a number is 3. What is the number?
  18. 18.12 is 10% of ?
  19. 19.Arjun spent ₹312, which is 80% of the pocket money. How much pocket money did Arjun have, in rupees?
  20. 20.30% of a number is 51. What is the number?
  21. 21.Dev spent ₹72, which is 40% of the pocket money. How much pocket money did Dev have, in rupees?
  22. 22.44 is 40% of ?
  23. 23.Sara spent ₹22, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  24. 24.Dev spent ₹6, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  25. 25.Aarav spent ₹17, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  26. 26.Rohan spent ₹30, which is 12% of the pocket money. How much pocket money did Rohan have, in rupees?
  27. 27.72 is 60% of ?
  28. 28.50% of a number is 58. What is the number?
  29. 29.Aarav spent ₹33, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  30. 30.Aarav spent ₹14, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  31. 31.Arjun spent ₹5, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  32. 32.Ishaan spent ₹92, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  33. 33.12% of a number is 45. What is the number?
  34. 34.Aarav spent ₹44, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  35. 35.40% of a number is 98. What is the number?
  36. 36.156 is 80% of ?
  37. 37.25% of a number is 9. What is the number?
  38. 38.5% of a number is 13. What is the number?
  39. 39.25% of a number is 64. What is the number?
  40. 40.Isha spent ₹45, which is 15% of the pocket money. How much pocket money did Isha have, in rupees?

Answer key

  1. 125
  2. 202
  3. 345
  4. 10
  5. 345
  6. 92
  7. 70
  8. 240
  9. 92
  10. 375
  11. 340
  12. 210
  13. 370
  14. 100
  15. 46
  16. 150
  17. 60
  18. 120
  19. 390
  20. 170
  21. 180
  22. 110
  23. 88
  24. 50
  25. 340
  26. 250
  27. 120
  28. 116
  29. 220
  30. 280
  31. 100
  32. 368
  33. 375
  34. 88
  35. 245
  36. 195
  37. 36
  38. 260
  39. 256
  40. 300

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