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Percentage lesson 9: Find the whole from a percent · Set 559 · 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.Rohan spent ₹36, which is 15% of the pocket money. How much pocket money did Rohan have, in rupees?
  2. 2.72 is 30% of ?
  3. 3.Anaya spent ₹12, which is 5% of the pocket money. How much pocket money did Anaya have, in rupees?
  4. 4.Anaya spent ₹158, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  5. 5.5% of a number is 20. What is the number?
  6. 6.80% of a number is 320. What is the number?
  7. 7.12% of a number is 12. What is the number?
  8. 8.20% of a number is 30. What is the number?
  9. 9.62 is 20% of ?
  10. 10.15 is 5% of ?
  11. 11.25% of a number is 66. What is the number?
  12. 12.5% of a number is 6. What is the number?
  13. 13.50% of a number is 185. What is the number?
  14. 14.54 is 15% of ?
  15. 15.80% of a number is 132. What is the number?
  16. 16.10% of a number is 32. What is the number?
  17. 17.5% of a number is 7. What is the number?
  18. 18.60% of a number is 120. What is the number?
  19. 19.Meera spent ₹90, which is 60% of the pocket money. How much pocket money did Meera have, in rupees?
  20. 20.18 is 75% of ?
  21. 21.80% of a number is 88. What is the number?
  22. 22.15% of a number is 18. What is the number?
  23. 23.Arjun spent ₹38, which is 25% of the pocket money. How much pocket money did Arjun have, in rupees?
  24. 24.30% of a number is 45. What is the number?
  25. 25.16 is 5% of ?
  26. 26.114 is 60% of ?
  27. 27.10% of a number is 10. What is the number?
  28. 28.Ishaan spent ₹276, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?
  29. 29.1 is 10% of ?
  30. 30.18 is 12% of ?
  31. 31.64 is 40% of ?
  32. 32.Rohan spent ₹139, which is 50% of the pocket money. How much pocket money did Rohan have, in rupees?
  33. 33.40% of a number is 134. What is the number?
  34. 34.Diya spent ₹75, which is 25% of the pocket money. How much pocket money did Diya have, in rupees?
  35. 35.23 is 25% of ?
  36. 36.20% of a number is 14. What is the number?
  37. 37.1 is 25% of ?
  38. 38.Aarav spent ₹157, which is 50% of the pocket money. How much pocket money did Aarav have, in rupees?
  39. 39.30% of a number is 54. What is the number?
  40. 40.Riya spent ₹44, which is 40% of the pocket money. How much pocket money did Riya have, in rupees?

Answer key

  1. 240
  2. 240
  3. 240
  4. 395
  5. 400
  6. 400
  7. 100
  8. 150
  9. 310
  10. 300
  11. 264
  12. 120
  13. 370
  14. 360
  15. 165
  16. 320
  17. 140
  18. 200
  19. 150
  20. 24
  21. 110
  22. 120
  23. 152
  24. 150
  25. 320
  26. 190
  27. 100
  28. 345
  29. 10
  30. 150
  31. 160
  32. 278
  33. 335
  34. 300
  35. 92
  36. 70
  37. 4
  38. 314
  39. 180
  40. 110

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