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Percentage lesson 9: Find the whole from a percent · Set 646 · 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.Sara spent ₹21, which is 12% of the pocket money. How much pocket money did Sara have, in rupees?
  2. 2.63 is 60% of ?
  3. 3.23 is 50% of ?
  4. 4.3 is 12% of ?
  5. 5.90 is 25% of ?
  6. 6.213 is 75% of ?
  7. 7.Ishaan spent ₹30, which is 15% of the pocket money. How much pocket money did Ishaan have, in rupees?
  8. 8.Riya spent ₹54, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  9. 9.Ishaan spent ₹84, which is 30% of the pocket money. How much pocket money did Ishaan have, in rupees?
  10. 10.25% of a number is 71. What is the number?
  11. 11.136 is 80% of ?
  12. 12.27 is 12% of ?
  13. 13.75% of a number is 18. What is the number?
  14. 14.Meera spent ₹149, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  15. 15.68 is 50% of ?
  16. 16.48 is 75% of ?
  17. 17.12% of a number is 33. What is the number?
  18. 18.Meera spent ₹48, which is 12% of the pocket money. How much pocket money did Meera have, in rupees?
  19. 19.6 is 15% of ?
  20. 20.80% of a number is 80. What is the number?
  21. 21.102 is 40% of ?
  22. 22.75% of a number is 87. What is the number?
  23. 23.25% of a number is 10. What is the number?
  24. 24.10% of a number is 31. What is the number?
  25. 25.Meera spent ₹60, which is 75% of the pocket money. How much pocket money did Meera have, in rupees?
  26. 26.Riya spent ₹13, which is 5% of the pocket money. How much pocket money did Riya have, in rupees?
  27. 27.11 is 10% of ?
  28. 28.15% of a number is 3. What is the number?
  29. 29.5% of a number is 11. What is the number?
  30. 30.25% of a number is 22. What is the number?
  31. 31.20% of a number is 51. What is the number?
  32. 32.50% of a number is 17. What is the number?
  33. 33.25% of a number is 82. What is the number?
  34. 34.36 is 15% of ?
  35. 35.135 is 50% of ?
  36. 36.236 is 80% of ?
  37. 37.25% of a number is 19. What is the number?
  38. 38.171 is 50% of ?
  39. 39.153 is 60% of ?
  40. 40.Arjun spent ₹9, which is 12% of the pocket money. How much pocket money did Arjun have, in rupees?

Answer key

  1. 175
  2. 105
  3. 46
  4. 25
  5. 360
  6. 284
  7. 200
  8. 72
  9. 280
  10. 284
  11. 170
  12. 225
  13. 24
  14. 298
  15. 136
  16. 64
  17. 275
  18. 400
  19. 40
  20. 100
  21. 255
  22. 116
  23. 40
  24. 310
  25. 80
  26. 260
  27. 110
  28. 20
  29. 220
  30. 88
  31. 255
  32. 34
  33. 328
  34. 240
  35. 270
  36. 295
  37. 76
  38. 342
  39. 255
  40. 75

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