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Percentage lesson 9: Find the whole from a percent · Set 146 · 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. 1.50% of a number is 96. What is the number?
  2. 2.Riya spent ₹25, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  3. 3.Aarav spent ₹24, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  4. 4.93 is 30% of ?
  5. 5.25% of a number is 57. What is the number?
  6. 6.Isha spent ₹20, which is 5% of the pocket money. How much pocket money did Isha have, in rupees?
  7. 7.12% of a number is 42. What is the number?
  8. 8.75% of a number is 114. What is the number?
  9. 9.88 is 80% of ?
  10. 10.35 is 25% of ?
  11. 11.12% of a number is 33. What is the number?
  12. 12.30% of a number is 30. What is the number?
  13. 13.30% of a number is 57. What is the number?
  14. 14.29 is 25% of ?
  15. 15.Aarav spent ₹160, which is 80% of the pocket money. How much pocket money did Aarav have, in rupees?
  16. 16.18 is 50% of ?
  17. 17.20% of a number is 46. What is the number?
  18. 18.40% of a number is 124. What is the number?
  19. 19.25% of a number is 31. What is the number?
  20. 20.60% of a number is 102. What is the number?
  21. 21.Diya spent ₹15, which is 5% of the pocket money. How much pocket money did Diya have, in rupees?
  22. 22.25% of a number is 90. What is the number?
  23. 23.5% of a number is 4. What is the number?
  24. 24.20% of a number is 80. What is the number?
  25. 25.19 is 50% of ?
  26. 26.Sara spent ₹189, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  27. 27.25% of a number is 88. What is the number?
  28. 28.10 is 10% of ?
  29. 29.53 is 50% of ?
  30. 30.12 is 5% of ?
  31. 31.Rohan spent ₹74, which is 50% of the pocket money. How much pocket money did Rohan have, in rupees?
  32. 32.60% of a number is 210. What is the number?
  33. 33.Meera spent ₹147, which is 50% of the pocket money. How much pocket money did Meera have, in rupees?
  34. 34.112 is 80% of ?
  35. 35.Riya spent ₹117, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  36. 36.62 is 25% of ?
  37. 37.Diya spent ₹145, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  38. 38.5% of a number is 6. What is the number?
  39. 39.50% of a number is 81. What is the number?
  40. 40.75% of a number is 90. What is the number?

Answer key

  1. 192
  2. 50
  3. 160
  4. 310
  5. 228
  6. 400
  7. 350
  8. 152
  9. 110
  10. 140
  11. 275
  12. 100
  13. 190
  14. 116
  15. 200
  16. 36
  17. 230
  18. 310
  19. 124
  20. 170
  21. 300
  22. 360
  23. 80
  24. 400
  25. 38
  26. 378
  27. 352
  28. 100
  29. 106
  30. 240
  31. 148
  32. 350
  33. 294
  34. 140
  35. 234
  36. 248
  37. 290
  38. 120
  39. 162
  40. 120

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