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Percentage lesson 9: Find the whole from a percent · Set 512 · 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.Meera spent ₹15, which is 12% of the pocket money. How much pocket money did Meera have, in rupees?
  2. 2.Diya spent ₹30, which is 60% of the pocket money. How much pocket money did Diya have, in rupees?
  3. 3.20% of a number is 15. What is the number?
  4. 4.50% of a number is 101. What is the number?
  5. 5.20% of a number is 1. What is the number?
  6. 6.50% of a number is 56. What is the number?
  7. 7.Kabir spent ₹36, which is 30% of the pocket money. How much pocket money did Kabir have, in rupees?
  8. 8.15 is 12% of ?
  9. 9.80% of a number is 172. What is the number?
  10. 10.Sara spent ₹42, which is 40% of the pocket money. How much pocket money did Sara have, in rupees?
  11. 11.Anaya spent ₹1, which is 25% of the pocket money. How much pocket money did Anaya have, in rupees?
  12. 12.Rohan spent ₹171, which is 60% of the pocket money. How much pocket money did Rohan have, in rupees?
  13. 13.Sara spent ₹296, which is 80% of the pocket money. How much pocket money did Sara have, in rupees?
  14. 14.12% of a number is 3. What is the number?
  15. 15.20% of a number is 2. What is the number?
  16. 16.Arjun spent ₹1, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  17. 17.50% of a number is 136. What is the number?
  18. 18.40% of a number is 38. What is the number?
  19. 19.40% of a number is 60. What is the number?
  20. 20.80% of a number is 308. What is the number?
  21. 21.60% of a number is 96. What is the number?
  22. 22.10 is 25% of ?
  23. 23.9 is 10% of ?
  24. 24.15% of a number is 30. What is the number?
  25. 25.20% of a number is 66. What is the number?
  26. 26.Isha spent ₹1, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  27. 27.25% of a number is 11. What is the number?
  28. 28.Riya spent ₹33, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  29. 29.59 is 20% of ?
  30. 30.60% of a number is 105. What is the number?
  31. 31.25% of a number is 49. What is the number?
  32. 32.60% of a number is 240. What is the number?
  33. 33.80% of a number is 104. What is the number?
  34. 34.15% of a number is 21. What is the number?
  35. 35.Sara spent ₹11, which is 10% of the pocket money. How much pocket money did Sara have, in rupees?
  36. 36.120 is 60% of ?
  37. 37.268 is 80% of ?
  38. 38.20% of a number is 42. What is the number?
  39. 39.Isha spent ₹137, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  40. 40.27 is 25% of ?

Answer key

  1. 125
  2. 50
  3. 75
  4. 202
  5. 5
  6. 112
  7. 120
  8. 125
  9. 215
  10. 105
  11. 4
  12. 285
  13. 370
  14. 25
  15. 10
  16. 5
  17. 272
  18. 95
  19. 150
  20. 385
  21. 160
  22. 40
  23. 90
  24. 200
  25. 330
  26. 20
  27. 44
  28. 220
  29. 295
  30. 175
  31. 196
  32. 400
  33. 130
  34. 140
  35. 110
  36. 200
  37. 335
  38. 210
  39. 274
  40. 108

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