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Percentage lesson 9: Find the whole from a percent · Set 335 · 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.Ishaan spent ₹88, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  2. 2.Rohan spent ₹4, which is 25% of the pocket money. How much pocket money did Rohan have, in rupees?
  3. 3.Diya spent ₹5, which is 25% of the pocket money. How much pocket money did Diya have, in rupees?
  4. 4.12 is 5% of ?
  5. 5.85 is 25% of ?
  6. 6.1 is 5% of ?
  7. 7.50% of a number is 170. What is the number?
  8. 8.76 is 20% of ?
  9. 9.50% of a number is 1. What is the number?
  10. 10.5 is 5% of ?
  11. 11.Diya spent ₹6, which is 10% of the pocket money. How much pocket money did Diya have, in rupees?
  12. 12.Rohan spent ₹19, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  13. 13.12% of a number is 21. What is the number?
  14. 14.Anaya spent ₹198, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?
  15. 15.Anaya spent ₹30, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?
  16. 16.10% of a number is 18. What is the number?
  17. 17.50% of a number is 137. What is the number?
  18. 18.49 is 25% of ?
  19. 19.30% of a number is 102. What is the number?
  20. 20.75% of a number is 102. What is the number?
  21. 21.39 is 30% of ?
  22. 22.2 is 10% of ?
  23. 23.30% of a number is 36. What is the number?
  24. 24.Arjun spent ₹15, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  25. 25.25% of a number is 2. What is the number?
  26. 26.12 is 60% of ?
  27. 27.18 is 12% of ?
  28. 28.Meera spent ₹31, which is 10% of the pocket money. How much pocket money did Meera have, in rupees?
  29. 29.Kabir spent ₹13, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  30. 30.114 is 40% of ?
  31. 31.48 is 12% of ?
  32. 32.10% of a number is 7. What is the number?
  33. 33.Aarav spent ₹74, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  34. 34.Kabir spent ₹82, which is 40% of the pocket money. How much pocket money did Kabir have, in rupees?
  35. 35.20% of a number is 57. What is the number?
  36. 36.40% of a number is 38. What is the number?
  37. 37.75% of a number is 48. What is the number?
  38. 38.75% of a number is 147. What is the number?
  39. 39.Riya spent ₹64, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  40. 40.Meera spent ₹149, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?

Answer key

  1. 352
  2. 16
  3. 20
  4. 240
  5. 340
  6. 20
  7. 340
  8. 380
  9. 2
  10. 100
  11. 60
  12. 95
  13. 175
  14. 330
  15. 50
  16. 180
  17. 274
  18. 196
  19. 340
  20. 136
  21. 130
  22. 20
  23. 120
  24. 100
  25. 8
  26. 20
  27. 150
  28. 310
  29. 260
  30. 285
  31. 400
  32. 70
  33. 370
  34. 205
  35. 285
  36. 95
  37. 64
  38. 196
  39. 256
  40. 298

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