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Percentage lesson 9: Find the whole from a percent · Set 10 · 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.Anaya spent ₹24, which is 12% of the pocket money. How much pocket money did Anaya have, in rupees?
  2. 2.Isha spent ₹15, which is 15% of the pocket money. How much pocket money did Isha have, in rupees?
  3. 3.37 is 10% of ?
  4. 4.12% of a number is 9. What is the number?
  5. 5.60% of a number is 6. What is the number?
  6. 6.15 is 12% of ?
  7. 7.102 is 30% of ?
  8. 8.Dev spent ₹132, which is 40% of the pocket money. How much pocket money did Dev have, in rupees?
  9. 9.9 is 12% of ?
  10. 10.39 is 10% of ?
  11. 11.7 is 25% of ?
  12. 12.Arjun spent ₹191, which is 50% of the pocket money. How much pocket money did Arjun have, in rupees?
  13. 13.3 is 12% of ?
  14. 14.Meera spent ₹69, which is 30% of the pocket money. How much pocket money did Meera have, in rupees?
  15. 15.5% of a number is 17. What is the number?
  16. 16.Diya spent ₹58, which is 40% of the pocket money. How much pocket money did Diya have, in rupees?
  17. 17.86 is 25% of ?
  18. 18.Isha spent ₹12, which is 30% of the pocket money. How much pocket money did Isha have, in rupees?
  19. 19.48 is 50% of ?
  20. 20.18 is 60% of ?
  21. 21.27 is 12% of ?
  22. 22.82 is 40% of ?
  23. 23.50% of a number is 101. What is the number?
  24. 24.Ishaan spent ₹29, which is 10% of the pocket money. How much pocket money did Ishaan have, in rupees?
  25. 25.Diya spent ₹36, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  26. 26.Diya spent ₹21, which is 30% of the pocket money. How much pocket money did Diya have, in rupees?
  27. 27.100 is 40% of ?
  28. 28.25% of a number is 61. What is the number?
  29. 29.6 is 10% of ?
  30. 30.25% of a number is 75. What is the number?
  31. 31.15% of a number is 30. What is the number?
  32. 32.12 is 12% of ?
  33. 33.50% of a number is 144. What is the number?
  34. 34.60 is 40% of ?
  35. 35.75% of a number is 45. What is the number?
  36. 36.60% of a number is 90. What is the number?
  37. 37.50% of a number is 48. What is the number?
  38. 38.Rohan spent ₹10, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  39. 39.40% of a number is 106. What is the number?
  40. 40.35 is 20% of ?

Answer key

  1. 200
  2. 100
  3. 370
  4. 75
  5. 10
  6. 125
  7. 340
  8. 330
  9. 75
  10. 390
  11. 28
  12. 382
  13. 25
  14. 230
  15. 340
  16. 145
  17. 344
  18. 40
  19. 96
  20. 30
  21. 225
  22. 205
  23. 202
  24. 290
  25. 72
  26. 70
  27. 250
  28. 244
  29. 60
  30. 300
  31. 200
  32. 100
  33. 288
  34. 150
  35. 60
  36. 150
  37. 96
  38. 40
  39. 265
  40. 175

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