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Percentage lesson 9: Find the whole from a percent · Set 545 · 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.

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  1. 1.Aarav spent ₹162, which is 60% of the pocket money. How much pocket money did Aarav have, in rupees?
  2. 2.Ishaan spent ₹140, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?
  3. 3.Isha spent ₹62, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  4. 4.92 is 25% of ?
  5. 5.Arjun spent ₹39, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  6. 6.11 is 10% of ?
  7. 7.30% of a number is 108. What is the number?
  8. 8.Aarav spent ₹10, which is 5% of the pocket money. How much pocket money did Aarav have, in rupees?
  9. 9.Aarav spent ₹6, which is 10% of the pocket money. How much pocket money did Aarav have, in rupees?
  10. 10.15% of a number is 45. What is the number?
  11. 11.Diya spent ₹47, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  12. 12.75% of a number is 294. What is the number?
  13. 13.80% of a number is 92. What is the number?
  14. 14.Riya spent ₹39, which is 10% of the pocket money. How much pocket money did Riya have, in rupees?
  15. 15.Rohan spent ₹3, which is 10% of the pocket money. How much pocket money did Rohan have, in rupees?
  16. 16.Aarav spent ₹96, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  17. 17.14 is 10% of ?
  18. 18.40% of a number is 92. What is the number?
  19. 19.Ishaan spent ₹17, which is 20% of the pocket money. How much pocket money did Ishaan have, in rupees?
  20. 20.40% of a number is 34. What is the number?
  21. 21.12% of a number is 21. What is the number?
  22. 22.Meera spent ₹13, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  23. 23.12% of a number is 36. What is the number?
  24. 24.16 is 5% of ?
  25. 25.75% of a number is 126. What is the number?
  26. 26.Anaya spent ₹6, which is 15% of the pocket money. How much pocket money did Anaya have, in rupees?
  27. 27.12% of a number is 9. What is the number?
  28. 28.10% of a number is 35. What is the number?
  29. 29.25% of a number is 73. What is the number?
  30. 30.8 is 10% of ?
  31. 31.Anaya spent ₹42, which is 30% of the pocket money. How much pocket money did Anaya have, in rupees?
  32. 32.Diya spent ₹37, which is 10% of the pocket money. How much pocket money did Diya have, in rupees?
  33. 33.Dev spent ₹13, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  34. 34.25% of a number is 85. What is the number?
  35. 35.5% of a number is 8. What is the number?
  36. 36.Meera spent ₹18, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  37. 37.80% of a number is 28. What is the number?
  38. 38.Diya spent ₹9, which is 12% of the pocket money. How much pocket money did Diya have, in rupees?
  39. 39.Ishaan spent ₹23, which is 20% of the pocket money. How much pocket money did Ishaan have, in rupees?
  40. 40.40% of a number is 66. What is the number?

Answer key

  1. 270
  2. 175
  3. 248
  4. 368
  5. 130
  6. 110
  7. 360
  8. 200
  9. 60
  10. 300
  11. 235
  12. 392
  13. 115
  14. 390
  15. 30
  16. 384
  17. 140
  18. 230
  19. 85
  20. 85
  21. 175
  22. 65
  23. 300
  24. 320
  25. 168
  26. 40
  27. 75
  28. 350
  29. 292
  30. 80
  31. 140
  32. 370
  33. 260
  34. 340
  35. 160
  36. 72
  37. 35
  38. 75
  39. 115
  40. 165

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