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Percentage lesson 9: Find the whole from a percent · Set 328 · 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. 1.10% of a number is 38. What is the number?
  2. 2.Isha spent ₹24, which is 12% of the pocket money. How much pocket money did Isha have, in rupees?
  3. 3.51 is 30% of ?
  4. 4.49 is 25% of ?
  5. 5.141 is 75% of ?
  6. 6.128 is 80% of ?
  7. 7.4 is 80% of ?
  8. 8.Rohan spent ₹99, which is 30% of the pocket money. How much pocket money did Rohan have, in rupees?
  9. 9.60% of a number is 183. What is the number?
  10. 10.Kabir spent ₹152, which is 80% of the pocket money. How much pocket money did Kabir have, in rupees?
  11. 11.14 is 5% of ?
  12. 12.102 is 40% of ?
  13. 13.Kabir spent ₹80, which is 50% of the pocket money. How much pocket money did Kabir have, in rupees?
  14. 14.Isha spent ₹22, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  15. 15.25% of a number is 45. What is the number?
  16. 16.22 is 20% of ?
  17. 17.40% of a number is 14. What is the number?
  18. 18.30% of a number is 60. What is the number?
  19. 19.Meera spent ₹18, which is 12% of the pocket money. How much pocket money did Meera have, in rupees?
  20. 20.236 is 80% of ?
  21. 21.25% of a number is 77. What is the number?
  22. 22.120 is 30% of ?
  23. 23.25% of a number is 2. What is the number?
  24. 24.20% of a number is 48. What is the number?
  25. 25.57 is 25% of ?
  26. 26.25% of a number is 11. What is the number?
  27. 27.Arjun spent ₹57, which is 75% of the pocket money. How much pocket money did Arjun have, in rupees?
  28. 28.10% of a number is 33. What is the number?
  29. 29.6 is 10% of ?
  30. 30.5 is 20% of ?
  31. 31.Isha spent ₹66, which is 75% of the pocket money. How much pocket money did Isha have, in rupees?
  32. 32.15% of a number is 18. What is the number?
  33. 33.Isha spent ₹48, which is 12% of the pocket money. How much pocket money did Isha have, in rupees?
  34. 34.12% of a number is 48. What is the number?
  35. 35.22 is 50% of ?
  36. 36.Riya spent ₹6, which is 30% of the pocket money. How much pocket money did Riya have, in rupees?
  37. 37.10% of a number is 6. What is the number?
  38. 38.50% of a number is 58. What is the number?
  39. 39.60% of a number is 150. What is the number?
  40. 40.20% of a number is 10. What is the number?

Answer key

  1. 380
  2. 200
  3. 170
  4. 196
  5. 188
  6. 160
  7. 5
  8. 330
  9. 305
  10. 190
  11. 280
  12. 255
  13. 160
  14. 44
  15. 180
  16. 110
  17. 35
  18. 200
  19. 150
  20. 295
  21. 308
  22. 400
  23. 8
  24. 240
  25. 228
  26. 44
  27. 76
  28. 330
  29. 60
  30. 25
  31. 88
  32. 120
  33. 400
  34. 400
  35. 44
  36. 20
  37. 60
  38. 116
  39. 250
  40. 50

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