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Percentage lesson 9: Find the whole from a percent · Set 448 · 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.Arjun spent ₹9, which is 12% of the pocket money. How much pocket money did Arjun have, in rupees?
  2. 2.5% of a number is 6. What is the number?
  3. 3.115 is 50% of ?
  4. 4.20% of a number is 12. What is the number?
  5. 5.30% of a number is 21. What is the number?
  6. 6.25% of a number is 4. What is the number?
  7. 7.Anaya spent ₹86, which is 25% of the pocket money. How much pocket money did Anaya have, in rupees?
  8. 8.Meera spent ₹42, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  9. 9.5% of a number is 18. What is the number?
  10. 10.15% of a number is 45. What is the number?
  11. 11.304 is 80% of ?
  12. 12.6 is 20% of ?
  13. 13.25% of a number is 40. What is the number?
  14. 14.20% of a number is 18. What is the number?
  15. 15.Dev spent ₹84, which is 80% of the pocket money. How much pocket money did Dev have, in rupees?
  16. 16.40 is 40% of ?
  17. 17.Riya spent ₹57, which is 30% of the pocket money. How much pocket money did Riya have, in rupees?
  18. 18.37 is 25% of ?
  19. 19.Aarav spent ₹45, which is 12% of the pocket money. How much pocket money did Aarav have, in rupees?
  20. 20.Arjun spent ₹27, which is 60% of the pocket money. How much pocket money did Arjun have, in rupees?
  21. 21.60% of a number is 45. What is the number?
  22. 22.60% of a number is 144. What is the number?
  23. 23.Sara spent ₹14, which is 40% of the pocket money. How much pocket money did Sara have, in rupees?
  24. 24.5% of a number is 3. What is the number?
  25. 25.Diya spent ₹92, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  26. 26.33 is 75% of ?
  27. 27.37 is 50% of ?
  28. 28.42 is 60% of ?
  29. 29.Rohan spent ₹270, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  30. 30.Aarav spent ₹77, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  31. 31.17 is 20% of ?
  32. 32.Sara spent ₹4, which is 10% of the pocket money. How much pocket money did Sara have, in rupees?
  33. 33.53 is 20% of ?
  34. 34.Rohan spent ₹210, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  35. 35.38 is 25% of ?
  36. 36.50 is 25% of ?
  37. 37.64 is 80% of ?
  38. 38.Meera spent ₹48, which is 40% of the pocket money. How much pocket money did Meera have, in rupees?
  39. 39.72 is 40% of ?
  40. 40.5% of a number is 1. What is the number?

Answer key

  1. 75
  2. 120
  3. 230
  4. 60
  5. 70
  6. 16
  7. 344
  8. 105
  9. 360
  10. 300
  11. 380
  12. 30
  13. 160
  14. 90
  15. 105
  16. 100
  17. 190
  18. 148
  19. 375
  20. 45
  21. 75
  22. 240
  23. 35
  24. 60
  25. 115
  26. 44
  27. 74
  28. 70
  29. 360
  30. 308
  31. 85
  32. 40
  33. 265
  34. 280
  35. 152
  36. 200
  37. 80
  38. 120
  39. 180
  40. 20

Free percentage lessons, practice and worksheets at talentjr.in/how-to-calculate-percentage