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Percentage lesson 9: Find the whole from a percent · Set 650 · 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. 1.25% of a number is 89. What is the number?
  2. 2.Kabir spent ₹3, which is 12% of the pocket money. How much pocket money did Kabir have, in rupees?
  3. 3.99 is 60% of ?
  4. 4.12% of a number is 18. What is the number?
  5. 5.20% of a number is 32. What is the number?
  6. 6.168 is 60% of ?
  7. 7.60% of a number is 99. What is the number?
  8. 8.28 is 10% of ?
  9. 9.44 is 80% of ?
  10. 10.25% of a number is 5. What is the number?
  11. 11.30% of a number is 105. What is the number?
  12. 12.15% of a number is 60. What is the number?
  13. 13.82 is 25% of ?
  14. 14.50% of a number is 129. What is the number?
  15. 15.50% of a number is 81. What is the number?
  16. 16.Aarav spent ₹18, which is 15% of the pocket money. How much pocket money did Aarav have, in rupees?
  17. 17.Dev spent ₹45, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  18. 18.26 is 40% of ?
  19. 19.50% of a number is 29. What is the number?
  20. 20.75% of a number is 102. What is the number?
  21. 21.Isha spent ₹3, which is 30% of the pocket money. How much pocket money did Isha have, in rupees?
  22. 22.5% of a number is 17. What is the number?
  23. 23.27 is 10% of ?
  24. 24.Dev spent ₹69, which is 30% of the pocket money. How much pocket money did Dev have, in rupees?
  25. 25.75% of a number is 135. What is the number?
  26. 26.Meera spent ₹26, which is 20% of the pocket money. How much pocket money did Meera have, in rupees?
  27. 27.30% of a number is 42. What is the number?
  28. 28.30% of a number is 27. What is the number?
  29. 29.5% of a number is 18. What is the number?
  30. 30.Anaya spent ₹97, which is 50% of the pocket money. How much pocket money did Anaya have, in rupees?
  31. 31.30% of a number is 78. What is the number?
  32. 32.93 is 30% of ?
  33. 33.Kabir spent ₹29, which is 10% of the pocket money. How much pocket money did Kabir have, in rupees?
  34. 34.Sara spent ₹68, which is 25% of the pocket money. How much pocket money did Sara have, in rupees?
  35. 35.Kabir spent ₹60, which is 30% of the pocket money. How much pocket money did Kabir have, in rupees?
  36. 36.Dev spent ₹33, which is 15% of the pocket money. How much pocket money did Dev have, in rupees?
  37. 37.Diya spent ₹79, which is 25% of the pocket money. How much pocket money did Diya have, in rupees?
  38. 38.9 is 30% of ?
  39. 39.Meera spent ₹102, which is 30% of the pocket money. How much pocket money did Meera have, in rupees?
  40. 40.12% of a number is 3. What is the number?

Answer key

  1. 356
  2. 25
  3. 165
  4. 150
  5. 160
  6. 280
  7. 165
  8. 280
  9. 55
  10. 20
  11. 350
  12. 400
  13. 328
  14. 258
  15. 162
  16. 120
  17. 150
  18. 65
  19. 58
  20. 136
  21. 10
  22. 340
  23. 270
  24. 230
  25. 180
  26. 130
  27. 140
  28. 90
  29. 360
  30. 194
  31. 260
  32. 310
  33. 290
  34. 272
  35. 200
  36. 220
  37. 316
  38. 30
  39. 340
  40. 25

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