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Percentage lesson 9: Find the whole from a percent · Set 488 · 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.Ishaan spent ₹18, which is 12% of the pocket money. How much pocket money did Ishaan have, in rupees?
  2. 2.34 is 50% of ?
  3. 3.Ishaan spent ₹10, which is 40% of the pocket money. How much pocket money did Ishaan have, in rupees?
  4. 4.33 is 30% of ?
  5. 5.Arjun spent ₹7, which is 5% of the pocket money. How much pocket money did Arjun have, in rupees?
  6. 6.50% of a number is 196. What is the number?
  7. 7.12% of a number is 30. What is the number?
  8. 8.210 is 60% of ?
  9. 9.12% of a number is 15. What is the number?
  10. 10.Rohan spent ₹31, which is 10% of the pocket money. How much pocket money did Rohan have, in rupees?
  11. 11.Dev spent ₹5, which is 5% of the pocket money. How much pocket money did Dev have, in rupees?
  12. 12.60% of a number is 186. What is the number?
  13. 13.Rohan spent ₹15, which is 30% of the pocket money. How much pocket money did Rohan have, in rupees?
  14. 14.Isha spent ₹74, which is 25% of the pocket money. How much pocket money did Isha have, in rupees?
  15. 15.30% of a number is 54. What is the number?
  16. 16.Kabir spent ₹27, which is 75% of the pocket money. How much pocket money did Kabir have, in rupees?
  17. 17.40% of a number is 56. What is the number?
  18. 18.Ishaan spent ₹234, which is 75% of the pocket money. How much pocket money did Ishaan have, in rupees?
  19. 19.25% of a number is 81. What is the number?
  20. 20.104 is 40% of ?
  21. 21.75% of a number is 57. What is the number?
  22. 22.Anaya spent ₹87, which is 60% of the pocket money. How much pocket money did Anaya have, in rupees?
  23. 23.6 is 5% of ?
  24. 24.Anaya spent ₹15, which is 15% of the pocket money. How much pocket money did Anaya have, in rupees?
  25. 25.Rohan spent ₹12, which is 30% of the pocket money. How much pocket money did Rohan have, in rupees?
  26. 26.23 is 10% of ?
  27. 27.36 is 12% of ?
  28. 28.111 is 60% of ?
  29. 29.7 is 10% of ?
  30. 30.3 is 60% of ?
  31. 31.38 is 20% of ?
  32. 32.Diya spent ₹62, which is 20% of the pocket money. How much pocket money did Diya have, in rupees?
  33. 33.15% of a number is 36. What is the number?
  34. 34.12% of a number is 6. What is the number?
  35. 35.Aarav spent ₹61, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  36. 36.Sara spent ₹144, which is 60% of the pocket money. How much pocket money did Sara have, in rupees?
  37. 37.Anaya spent ₹24, which is 20% of the pocket money. How much pocket money did Anaya have, in rupees?
  38. 38.46 is 40% of ?
  39. 39.25% of a number is 99. What is the number?
  40. 40.10% of a number is 10. What is the number?

Answer key

  1. 150
  2. 68
  3. 25
  4. 110
  5. 140
  6. 392
  7. 250
  8. 350
  9. 125
  10. 310
  11. 100
  12. 310
  13. 50
  14. 296
  15. 180
  16. 36
  17. 140
  18. 312
  19. 324
  20. 260
  21. 76
  22. 145
  23. 120
  24. 100
  25. 40
  26. 230
  27. 300
  28. 185
  29. 70
  30. 5
  31. 190
  32. 310
  33. 240
  34. 50
  35. 305
  36. 240
  37. 120
  38. 115
  39. 396
  40. 100

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