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Percentage lesson 9: Find the whole from a percent · Set 696 · 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. 1.40% of a number is 160. What is the number?
  2. 2.10% of a number is 1. What is the number?
  3. 3.Aarav spent ₹81, which is 60% of the pocket money. How much pocket money did Aarav have, in rupees?
  4. 4.40% of a number is 94. What is the number?
  5. 5.10% of a number is 25. What is the number?
  6. 6.75% of a number is 168. What is the number?
  7. 7.10% of a number is 30. What is the number?
  8. 8.4 is 80% of ?
  9. 9.50% of a number is 114. What is the number?
  10. 10.10% of a number is 39. What is the number?
  11. 11.25% of a number is 27. What is the number?
  12. 12.50% of a number is 110. What is the number?
  13. 13.25% of a number is 24. What is the number?
  14. 14.10% of a number is 17. What is the number?
  15. 15.10% of a number is 36. What is the number?
  16. 16.63 is 60% of ?
  17. 17.19 is 5% of ?
  18. 18.75% of a number is 129. What is the number?
  19. 19.Isha spent ₹27, which is 75% of the pocket money. How much pocket money did Isha have, in rupees?
  20. 20.40% of a number is 72. What is the number?
  21. 21.75% of a number is 228. What is the number?
  22. 22.Dev spent ₹21, which is 12% of the pocket money. How much pocket money did Dev have, in rupees?
  23. 23.48 is 12% of ?
  24. 24.Rohan spent ₹300, which is 75% of the pocket money. How much pocket money did Rohan have, in rupees?
  25. 25.135 is 75% of ?
  26. 26.12% of a number is 45. What is the number?
  27. 27.5% of a number is 2. What is the number?
  28. 28.Anaya spent ₹69, which is 20% of the pocket money. How much pocket money did Anaya have, in rupees?
  29. 29.2 is 10% of ?
  30. 30.12 is 12% of ?
  31. 31.32 is 40% of ?
  32. 32.15% of a number is 39. What is the number?
  33. 33.30% of a number is 87. What is the number?
  34. 34.Sara spent ₹165, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  35. 35.20% of a number is 21. What is the number?
  36. 36.11 is 5% of ?
  37. 37.66 is 75% of ?
  38. 38.64 is 80% of ?
  39. 39.10% of a number is 14. What is the number?
  40. 40.60 is 80% of ?

Answer key

  1. 400
  2. 10
  3. 135
  4. 235
  5. 250
  6. 224
  7. 300
  8. 5
  9. 228
  10. 390
  11. 108
  12. 220
  13. 96
  14. 170
  15. 360
  16. 105
  17. 380
  18. 172
  19. 36
  20. 180
  21. 304
  22. 175
  23. 400
  24. 400
  25. 180
  26. 375
  27. 40
  28. 345
  29. 20
  30. 100
  31. 80
  32. 260
  33. 290
  34. 275
  35. 105
  36. 220
  37. 88
  38. 80
  39. 140
  40. 75

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