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Percentage lesson 9: Find the whole from a percent · Set 594 · 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. 1.12% of a number is 18. What is the number?
  2. 2.30% of a number is 54. What is the number?
  3. 3.Rohan spent ₹6, which is 15% of the pocket money. How much pocket money did Rohan have, in rupees?
  4. 4.234 is 60% of ?
  5. 5.60% of a number is 36. What is the number?
  6. 6.40 is 25% of ?
  7. 7.112 is 40% of ?
  8. 8.264 is 80% of ?
  9. 9.66 is 20% of ?
  10. 10.Rohan spent ₹80, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  11. 11.Diya spent ₹22, which is 10% of the pocket money. How much pocket money did Diya have, in rupees?
  12. 12.Isha spent ₹42, which is 30% of the pocket money. How much pocket money did Isha have, in rupees?
  13. 13.Anaya spent ₹68, which is 80% of the pocket money. How much pocket money did Anaya have, in rupees?
  14. 14.228 is 60% of ?
  15. 15.15 is 12% of ?
  16. 16.Kabir spent ₹18, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  17. 17.3 is 30% of ?
  18. 18.54 is 30% of ?
  19. 19.Kabir spent ₹74, which is 40% of the pocket money. How much pocket money did Kabir have, in rupees?
  20. 20.61 is 50% of ?
  21. 21.40% of a number is 80. What is the number?
  22. 22.21 is 10% of ?
  23. 23.20% of a number is 58. What is the number?
  24. 24.28 is 10% of ?
  25. 25.40% of a number is 126. What is the number?
  26. 26.56 is 20% of ?
  27. 27.80% of a number is 224. What is the number?
  28. 28.5% of a number is 19. What is the number?
  29. 29.Dev spent ₹15, which is 25% of the pocket money. How much pocket money did Dev have, in rupees?
  30. 30.15 is 5% of ?
  31. 31.40% of a number is 158. What is the number?
  32. 32.157 is 50% of ?
  33. 33.15% of a number is 36. What is the number?
  34. 34.12 is 15% of ?
  35. 35.Meera spent ₹27, which is 10% of the pocket money. How much pocket money did Meera have, in rupees?
  36. 36.25% of a number is 41. What is the number?
  37. 37.Meera spent ₹74, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  38. 38.15% of a number is 51. What is the number?
  39. 39.Diya spent ₹65, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  40. 40.189 is 50% of ?

Answer key

  1. 150
  2. 180
  3. 40
  4. 390
  5. 60
  6. 160
  7. 280
  8. 330
  9. 330
  10. 400
  11. 220
  12. 140
  13. 85
  14. 380
  15. 125
  16. 24
  17. 10
  18. 180
  19. 185
  20. 122
  21. 200
  22. 210
  23. 290
  24. 280
  25. 315
  26. 280
  27. 280
  28. 380
  29. 60
  30. 300
  31. 395
  32. 314
  33. 240
  34. 80
  35. 270
  36. 164
  37. 148
  38. 340
  39. 130
  40. 378

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