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Percentage lesson 9: Find the whole from a percent · Set 197 · 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.Dev spent ₹32, which is 20% of the pocket money. How much pocket money did Dev have, in rupees?
  2. 2.3 is 5% of ?
  3. 3.50% of a number is 6. What is the number?
  4. 4.147 is 75% of ?
  5. 5.Aarav spent ₹38, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  6. 6.75% of a number is 90. What is the number?
  7. 7.20% of a number is 40. What is the number?
  8. 8.5 is 20% of ?
  9. 9.30% of a number is 120. What is the number?
  10. 10.Arjun spent ₹9, which is 12% of the pocket money. How much pocket money did Arjun have, in rupees?
  11. 11.58 is 40% of ?
  12. 12.Rohan spent ₹27, which is 10% of the pocket money. How much pocket money did Rohan have, in rupees?
  13. 13.Sara spent ₹31, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  14. 14.5 is 5% of ?
  15. 15.24 is 30% of ?
  16. 16.25% of a number is 5. What is the number?
  17. 17.50% of a number is 86. What is the number?
  18. 18.2 is 10% of ?
  19. 19.30% of a number is 36. What is the number?
  20. 20.20% of a number is 16. What is the number?
  21. 21.92 is 25% of ?
  22. 22.Isha spent ₹27, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  23. 23.40% of a number is 74. What is the number?
  24. 24.30% of a number is 78. What is the number?
  25. 25.25% of a number is 2. What is the number?
  26. 26.7 is 10% of ?
  27. 27.Rohan spent ₹232, which is 80% of the pocket money. How much pocket money did Rohan have, in rupees?
  28. 28.21 is 12% of ?
  29. 29.Meera spent ₹141, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?
  30. 30.291 is 75% of ?
  31. 31.20 is 40% of ?
  32. 32.8 is 5% of ?
  33. 33.55 is 25% of ?
  34. 34.172 is 80% of ?
  35. 35.144 is 80% of ?
  36. 36.236 is 80% of ?
  37. 37.Kabir spent ₹282, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  38. 38.50% of a number is 185. What is the number?
  39. 39.5% of a number is 19. What is the number?
  40. 40.22 is 10% of ?

Answer key

  1. 160
  2. 60
  3. 12
  4. 196
  5. 380
  6. 120
  7. 200
  8. 25
  9. 400
  10. 75
  11. 145
  12. 270
  13. 155
  14. 100
  15. 80
  16. 20
  17. 172
  18. 20
  19. 120
  20. 80
  21. 368
  22. 108
  23. 185
  24. 260
  25. 8
  26. 70
  27. 290
  28. 175
  29. 235
  30. 388
  31. 50
  32. 160
  33. 220
  34. 215
  35. 180
  36. 295
  37. 376
  38. 370
  39. 380
  40. 220

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