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Percentage lesson 9: Find the whole from a percent · Set 123 · 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 87. What is the number?
  2. 2.Meera spent ₹153, which is 75% of the pocket money. How much pocket money did Meera have, in rupees?
  3. 3.12 is 5% of ?
  4. 4.20% of a number is 76. What is the number?
  5. 5.276 is 75% of ?
  6. 6.12% of a number is 6. What is the number?
  7. 7.10% of a number is 12. What is the number?
  8. 8.16 is 40% of ?
  9. 9.5% of a number is 15. What is the number?
  10. 10.201 is 75% of ?
  11. 11.165 is 75% of ?
  12. 12.195 is 50% of ?
  13. 13.23 is 20% of ?
  14. 14.Sara spent ₹183, which is 75% of the pocket money. How much pocket money did Sara have, in rupees?
  15. 15.Arjun spent ₹9, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  16. 16.80% of a number is 172. What is the number?
  17. 17.10 is 10% of ?
  18. 18.Sara spent ₹21, which is 50% of the pocket money. How much pocket money did Sara have, in rupees?
  19. 19.19 is 50% of ?
  20. 20.Anaya spent ₹316, which is 80% of the pocket money. How much pocket money did Anaya have, in rupees?
  21. 21.36 is 15% of ?
  22. 22.45 is 12% of ?
  23. 23.60% of a number is 159. What is the number?
  24. 24.Diya spent ₹3, which is 12% of the pocket money. How much pocket money did Diya have, in rupees?
  25. 25.122 is 40% of ?
  26. 26.Anaya spent ₹284, which is 80% of the pocket money. How much pocket money did Anaya have, in rupees?
  27. 27.80% of a number is 264. What is the number?
  28. 28.Arjun spent ₹31, which is 10% of the pocket money. How much pocket money did Arjun have, in rupees?
  29. 29.10% of a number is 13. What is the number?
  30. 30.12% of a number is 9. What is the number?
  31. 31.20% of a number is 2. What is the number?
  32. 32.25% of a number is 38. What is the number?
  33. 33.21 is 20% of ?
  34. 34.40% of a number is 78. What is the number?
  35. 35.55 is 50% of ?
  36. 36.20% of a number is 58. What is the number?
  37. 37.Diya spent ₹246, which is 75% of the pocket money. How much pocket money did Diya have, in rupees?
  38. 38.30 is 30% of ?
  39. 39.7 is 5% of ?
  40. 40.15% of a number is 54. What is the number?

Answer key

  1. 116
  2. 204
  3. 240
  4. 380
  5. 368
  6. 50
  7. 120
  8. 40
  9. 300
  10. 268
  11. 220
  12. 390
  13. 115
  14. 244
  15. 60
  16. 215
  17. 100
  18. 42
  19. 38
  20. 395
  21. 240
  22. 375
  23. 265
  24. 25
  25. 305
  26. 355
  27. 330
  28. 310
  29. 130
  30. 75
  31. 10
  32. 152
  33. 105
  34. 195
  35. 110
  36. 290
  37. 328
  38. 100
  39. 140
  40. 360

Free percentage lessons, practice and worksheets at talentjr.in/how-to-calculate-percentage