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Percentage lesson 9: Find the whole from a percent · Set 102 · 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. 1.16 is 40% of ?
  2. 2.Kabir spent ₹222, which is 60% of the pocket money. How much pocket money did Kabir have, in rupees?
  3. 3.Anaya spent ₹32, which is 20% of the pocket money. How much pocket money did Anaya have, in rupees?
  4. 4.Kabir spent ₹179, which is 50% of the pocket money. How much pocket money did Kabir have, in rupees?
  5. 5.Arjun spent ₹36, which is 30% of the pocket money. How much pocket money did Arjun have, in rupees?
  6. 6.80% of a number is 16. What is the number?
  7. 7.156 is 60% of ?
  8. 8.Aarav spent ₹36, which is 25% of the pocket money. How much pocket money did Aarav have, in rupees?
  9. 9.9 is 5% of ?
  10. 10.75% of a number is 102. What is the number?
  11. 11.3 is 10% of ?
  12. 12.80% of a number is 60. What is the number?
  13. 13.25% of a number is 34. What is the number?
  14. 14.40% of a number is 90. What is the number?
  15. 15.25% of a number is 97. What is the number?
  16. 16.118 is 50% of ?
  17. 17.17 is 5% of ?
  18. 18.30% of a number is 81. What is the number?
  19. 19.21 is 50% of ?
  20. 20.20% of a number is 10. What is the number?
  21. 21.3 is 75% of ?
  22. 22.40% of a number is 158. What is the number?
  23. 23.75% of a number is 126. What is the number?
  24. 24.Riya spent ₹273, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  25. 25.39 is 10% of ?
  26. 26.Kabir spent ₹54, which is 15% of the pocket money. How much pocket money did Kabir have, in rupees?
  27. 27.55 is 20% of ?
  28. 28.28 is 20% of ?
  29. 29.60 is 15% of ?
  30. 30.12% of a number is 45. What is the number?
  31. 31.40% of a number is 124. What is the number?
  32. 32.40% of a number is 140. What is the number?
  33. 33.66 is 60% of ?
  34. 34.Dev spent ₹10, which is 10% of the pocket money. How much pocket money did Dev have, in rupees?
  35. 35.37 is 20% of ?
  36. 36.Aarav spent ₹81, which is 60% of the pocket money. How much pocket money did Aarav have, in rupees?
  37. 37.36 is 40% of ?
  38. 38.12% of a number is 3. What is the number?
  39. 39.6 is 5% of ?
  40. 40.7 is 25% of ?

Answer key

  1. 40
  2. 370
  3. 160
  4. 358
  5. 120
  6. 20
  7. 260
  8. 144
  9. 180
  10. 136
  11. 30
  12. 75
  13. 136
  14. 225
  15. 388
  16. 236
  17. 340
  18. 270
  19. 42
  20. 50
  21. 4
  22. 395
  23. 168
  24. 364
  25. 390
  26. 360
  27. 275
  28. 140
  29. 400
  30. 375
  31. 310
  32. 350
  33. 110
  34. 100
  35. 185
  36. 135
  37. 90
  38. 25
  39. 120
  40. 28

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