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Percentage lesson 9: Find the whole from a percent · Set 899 · 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. 1.75% of a number is 102. What is the number?
  2. 2.Sara spent ₹21, which is 12% of the pocket money. How much pocket money did Sara have, in rupees?
  3. 3.12% of a number is 3. What is the number?
  4. 4.Anaya spent ₹85, which is 25% of the pocket money. How much pocket money did Anaya have, in rupees?
  5. 5.3 is 10% of ?
  6. 6.80% of a number is 16. What is the number?
  7. 7.50% of a number is 158. What is the number?
  8. 8.Riya spent ₹9, which is 20% of the pocket money. How much pocket money did Riya have, in rupees?
  9. 9.99 is 75% of ?
  10. 10.20% of a number is 29. What is the number?
  11. 11.54 is 15% of ?
  12. 12.228 is 75% of ?
  13. 13.5% of a number is 4. What is the number?
  14. 14.50% of a number is 106. What is the number?
  15. 15.22 is 25% of ?
  16. 16.20% of a number is 2. What is the number?
  17. 17.80% of a number is 156. What is the number?
  18. 18.11 is 20% of ?
  19. 19.80% of a number is 104. What is the number?
  20. 20.Meera spent ₹10, which is 25% of the pocket money. How much pocket money did Meera have, in rupees?
  21. 21.60% of a number is 105. What is the number?
  22. 22.15% of a number is 33. What is the number?
  23. 23.Diya spent ₹88, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  24. 24.168 is 60% of ?
  25. 25.33 is 12% of ?
  26. 26.12 is 12% of ?
  27. 27.45 is 12% of ?
  28. 28.99 is 30% of ?
  29. 29.Dev spent ₹6, which is 15% of the pocket money. How much pocket money did Dev have, in rupees?
  30. 30.Riya spent ₹18, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  31. 31.97 is 25% of ?
  32. 32.40% of a number is 148. What is the number?
  33. 33.9 is 60% of ?
  34. 34.9 is 15% of ?
  35. 35.60% of a number is 108. What is the number?
  36. 36.30% of a number is 45. What is the number?
  37. 37.30% of a number is 24. What is the number?
  38. 38.Sara spent ₹65, which is 20% of the pocket money. How much pocket money did Sara have, in rupees?
  39. 39.30% of a number is 81. What is the number?
  40. 40.10% of a number is 6. What is the number?

Answer key

  1. 136
  2. 175
  3. 25
  4. 340
  5. 30
  6. 20
  7. 316
  8. 45
  9. 132
  10. 145
  11. 360
  12. 304
  13. 80
  14. 212
  15. 88
  16. 10
  17. 195
  18. 55
  19. 130
  20. 40
  21. 175
  22. 220
  23. 176
  24. 280
  25. 275
  26. 100
  27. 375
  28. 330
  29. 40
  30. 120
  31. 388
  32. 370
  33. 15
  34. 60
  35. 180
  36. 150
  37. 80
  38. 325
  39. 270
  40. 60

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