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Percentage lesson 9: Find the whole from a percent · Set 148 · 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. 1.5% of a number is 4. What is the number?
  2. 2.12% of a number is 48. What is the number?
  3. 3.20% of a number is 46. What is the number?
  4. 4.30 is 60% of ?
  5. 5.Arjun spent ₹11, which is 20% of the pocket money. How much pocket money did Arjun have, in rupees?
  6. 6.116 is 50% of ?
  7. 7.Meera spent ₹157, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  8. 8.10% of a number is 2. What is the number?
  9. 9.Diya spent ₹18, which is 15% of the pocket money. How much pocket money did Diya have, in rupees?
  10. 10.24 is 15% of ?
  11. 11.60% of a number is 78. What is the number?
  12. 12.75% of a number is 99. What is the number?
  13. 13.50% of a number is 161. What is the number?
  14. 14.80% of a number is 232. What is the number?
  15. 15.Riya spent ₹29, which is 25% of the pocket money. How much pocket money did Riya have, in rupees?
  16. 16.34 is 25% of ?
  17. 17.10 is 20% of ?
  18. 18.30% of a number is 51. What is the number?
  19. 19.177 is 50% of ?
  20. 20.Rohan spent ₹41, which is 20% of the pocket money. How much pocket money did Rohan have, in rupees?
  21. 21.15% of a number is 12. What is the number?
  22. 22.Kabir spent ₹13, which is 5% of the pocket money. How much pocket money did Kabir have, in rupees?
  23. 23.82 is 25% of ?
  24. 24.Kabir spent ₹30, which is 60% of the pocket money. How much pocket money did Kabir have, in rupees?
  25. 25.12% of a number is 6. What is the number?
  26. 26.50% of a number is 93. What is the number?
  27. 27.39 is 60% of ?
  28. 28.75% of a number is 246. What is the number?
  29. 29.64 is 20% of ?
  30. 30.Aarav spent ₹108, which is 60% of the pocket money. How much pocket money did Aarav have, in rupees?
  31. 31.60 is 25% of ?
  32. 32.Aarav spent ₹152, which is 40% of the pocket money. How much pocket money did Aarav have, in rupees?
  33. 33.288 is 80% of ?
  34. 34.30% of a number is 96. What is the number?
  35. 35.80% of a number is 196. What is the number?
  36. 36.21 is 12% of ?
  37. 37.Aarav spent ₹58, which is 40% of the pocket money. How much pocket money did Aarav have, in rupees?
  38. 38.33 is 60% of ?
  39. 39.105 is 30% of ?
  40. 40.Ishaan spent ₹36, which is 80% of the pocket money. How much pocket money did Ishaan have, in rupees?

Answer key

  1. 80
  2. 400
  3. 230
  4. 50
  5. 55
  6. 232
  7. 314
  8. 20
  9. 120
  10. 160
  11. 130
  12. 132
  13. 322
  14. 290
  15. 116
  16. 136
  17. 50
  18. 170
  19. 354
  20. 205
  21. 80
  22. 260
  23. 328
  24. 50
  25. 50
  26. 186
  27. 65
  28. 328
  29. 320
  30. 180
  31. 240
  32. 380
  33. 360
  34. 320
  35. 245
  36. 175
  37. 145
  38. 55
  39. 350
  40. 45

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