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Percentage lesson 9: Find the whole from a percent · Set 812 · 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. 1.40% of a number is 58. What is the number?
  2. 2.Aarav spent ₹6, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  3. 3.52 is 20% of ?
  4. 4.15% of a number is 15. What is the number?
  5. 5.5% of a number is 3. What is the number?
  6. 6.10% of a number is 13. What is the number?
  7. 7.48 is 30% of ?
  8. 8.Riya spent ₹45, which is 15% of the pocket money. How much pocket money did Riya have, in rupees?
  9. 9.40% of a number is 146. What is the number?
  10. 10.Riya spent ₹39, which is 75% of the pocket money. How much pocket money did Riya have, in rupees?
  11. 11.Rohan spent ₹234, which is 60% of the pocket money. How much pocket money did Rohan have, in rupees?
  12. 12.Ishaan spent ₹69, which is 25% of the pocket money. How much pocket money did Ishaan have, in rupees?
  13. 13.Anaya spent ₹128, which is 40% of the pocket money. How much pocket money did Anaya have, in rupees?
  14. 14.10% of a number is 16. What is the number?
  15. 15.72 is 40% of ?
  16. 16.Arjun spent ₹21, which is 15% of the pocket money. How much pocket money did Arjun have, in rupees?
  17. 17.108 is 30% of ?
  18. 18.15% of a number is 18. What is the number?
  19. 19.Dev spent ₹201, which is 60% of the pocket money. How much pocket money did Dev have, in rupees?
  20. 20.60% of a number is 87. What is the number?
  21. 21.12% of a number is 42. What is the number?
  22. 22.Anaya spent ₹28, which is 10% of the pocket money. How much pocket money did Anaya have, in rupees?
  23. 23.162 is 60% of ?
  24. 24.Isha spent ₹308, which is 80% of the pocket money. How much pocket money did Isha have, in rupees?
  25. 25.30% of a number is 24. What is the number?
  26. 26.Dev spent ₹35, which is 20% of the pocket money. How much pocket money did Dev have, in rupees?
  27. 27.4 is 20% of ?
  28. 28.33 is 15% of ?
  29. 29.105 is 60% of ?
  30. 30.48 is 20% of ?
  31. 31.92 is 80% of ?
  32. 32.50% of a number is 79. What is the number?
  33. 33.Isha spent ₹36, which is 50% of the pocket money. How much pocket money did Isha have, in rupees?
  34. 34.60% of a number is 105. What is the number?
  35. 35.27 is 60% of ?
  36. 36.20% of a number is 6. What is the number?
  37. 37.30% of a number is 42. What is the number?
  38. 38.Diya spent ₹75, which is 50% of the pocket money. How much pocket money did Diya have, in rupees?
  39. 39.228 is 60% of ?
  40. 40.234 is 75% of ?

Answer key

  1. 145
  2. 40
  3. 260
  4. 100
  5. 60
  6. 130
  7. 160
  8. 300
  9. 365
  10. 52
  11. 390
  12. 276
  13. 320
  14. 160
  15. 180
  16. 140
  17. 360
  18. 120
  19. 335
  20. 145
  21. 350
  22. 280
  23. 270
  24. 385
  25. 80
  26. 175
  27. 20
  28. 220
  29. 175
  30. 240
  31. 115
  32. 158
  33. 72
  34. 175
  35. 45
  36. 30
  37. 140
  38. 150
  39. 380
  40. 312

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