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Percentage lesson 9: Find the whole from a percent · Set 157 · 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.Isha spent ₹9, which is 12% of the pocket money. How much pocket money did Isha have, in rupees?
  2. 2.80% of a number is 280. What is the number?
  3. 3.Aarav spent ₹63, which is 30% of the pocket money. How much pocket money did Aarav have, in rupees?
  4. 4.Rohan spent ₹11, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  5. 5.Arjun spent ₹2, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  6. 6.Aarav spent ₹88, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  7. 7.12% of a number is 39. What is the number?
  8. 8.Anaya spent ₹84, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  9. 9.Anaya spent ₹146, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  10. 10.30% of a number is 114. What is the number?
  11. 11.219 is 60% of ?
  12. 12.30% of a number is 42. What is the number?
  13. 13.22 is 10% of ?
  14. 14.Aarav spent ₹159, which is 60% of the pocket money. How much pocket money did Aarav have, in rupees?
  15. 15.20% of a number is 21. What is the number?
  16. 16.25% of a number is 52. What is the number?
  17. 17.Meera spent ₹3, which is 5% of the pocket money. How much pocket money did Meera have, in rupees?
  18. 18.66 is 75% of ?
  19. 19.99 is 30% of ?
  20. 20.80% of a number is 124. What is the number?
  21. 21.3 is 5% of ?
  22. 22.5% of a number is 19. What is the number?
  23. 23.12% of a number is 24. What is the number?
  24. 24.75% of a number is 234. What is the number?
  25. 25.75% of a number is 90. What is the number?
  26. 26.10% of a number is 17. What is the number?
  27. 27.50% of a number is 36. What is the number?
  28. 28.Meera spent ₹3, which is 12% of the pocket money. How much pocket money did Meera have, in rupees?
  29. 29.111 is 30% of ?
  30. 30.Riya spent ₹4, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  31. 31.9 is 10% of ?
  32. 32.48 is 12% of ?
  33. 33.108 is 30% of ?
  34. 34.201 is 75% of ?
  35. 35.20% of a number is 15. What is the number?
  36. 36.Meera spent ₹18, which is 15% of the pocket money. How much pocket money did Meera have, in rupees?
  37. 37.31 is 50% of ?
  38. 38.3 is 25% of ?
  39. 39.60% of a number is 36. What is the number?
  40. 40.Sara spent ₹19, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?

Answer key

  1. 75
  2. 350
  3. 210
  4. 44
  5. 40
  6. 352
  7. 325
  8. 210
  9. 365
  10. 380
  11. 365
  12. 140
  13. 220
  14. 265
  15. 105
  16. 208
  17. 60
  18. 88
  19. 330
  20. 155
  21. 60
  22. 380
  23. 200
  24. 312
  25. 120
  26. 170
  27. 72
  28. 25
  29. 370
  30. 20
  31. 90
  32. 400
  33. 360
  34. 268
  35. 75
  36. 120
  37. 62
  38. 12
  39. 60
  40. 76

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