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Percentage lesson 9: Find the whole from a percent · Set 162 · 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. 1.75% of a number is 159. What is the number?
  2. 2.Dev spent ₹51, which is 15% of the pocket money. How much pocket money did Dev have, in rupees?
  3. 3.81 is 75% of ?
  4. 4.80% of a number is 64. What is the number?
  5. 5.10% of a number is 34. What is the number?
  6. 6.Meera spent ₹20, which is 5% of the pocket money. How much pocket money did Meera have, in rupees?
  7. 7.Kabir spent ₹15, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  8. 8.15% of a number is 6. What is the number?
  9. 9.Rohan spent ₹27, which is 15% of the pocket money. How much pocket money did Rohan have, in rupees?
  10. 10.25% of a number is 12. What is the number?
  11. 11.Ishaan spent ₹122, which is 40% of the pocket money. How much pocket money did Ishaan have, in rupees?
  12. 12.30% of a number is 3. What is the number?
  13. 13.15% of a number is 9. What is the number?
  14. 14.40 is 20% of ?
  15. 15.Aarav spent ₹28, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  16. 16.9 is 30% of ?
  17. 17.25% of a number is 2. What is the number?
  18. 18.5% of a number is 11. What is the number?
  19. 19.Isha spent ₹77, which is 20% of the pocket money. How much pocket money did Isha have, in rupees?
  20. 20.30% of a number is 114. What is the number?
  21. 21.Diya spent ₹132, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  22. 22.Rohan spent ₹240, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  23. 23.Ishaan spent ₹31, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  24. 24.9 is 15% of ?
  25. 25.Aarav spent ₹18, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  26. 26.3 is 60% of ?
  27. 27.9 is 10% of ?
  28. 28.60% of a number is 138. What is the number?
  29. 29.12 is 12% of ?
  30. 30.Anaya spent ₹9, which is 25% of the pocket money. How much pocket money did Anaya have, in rupees?
  31. 31.60 is 15% of ?
  32. 32.Ishaan spent ₹56, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  33. 33.Diya spent ₹75, which is 30% of the pocket money. How much pocket money did Diya have, in rupees?
  34. 34.62 is 25% of ?
  35. 35.5% of a number is 17. What is the number?
  36. 36.228 is 80% of ?
  37. 37.15% of a number is 18. What is the number?
  38. 38.15 is 50% of ?
  39. 39.18 is 30% of ?
  40. 40.33 is 12% of ?

Answer key

  1. 212
  2. 340
  3. 108
  4. 80
  5. 340
  6. 400
  7. 300
  8. 40
  9. 180
  10. 48
  11. 305
  12. 10
  13. 60
  14. 200
  15. 140
  16. 30
  17. 8
  18. 220
  19. 385
  20. 380
  21. 330
  22. 300
  23. 310
  24. 60
  25. 180
  26. 5
  27. 90
  28. 230
  29. 100
  30. 36
  31. 400
  32. 224
  33. 250
  34. 248
  35. 340
  36. 285
  37. 120
  38. 30
  39. 60
  40. 275

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