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Percentage lesson 9: Find the whole from a percent · Set 88 · 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. 1.89 is 50% of ?
  2. 2.10% of a number is 15. What is the number?
  3. 3.42 is 15% of ?
  4. 4.52 is 50% of ?
  5. 5.25% of a number is 62. What is the number?
  6. 6.40% of a number is 26. What is the number?
  7. 7.40% of a number is 2. What is the number?
  8. 8.108 is 60% of ?
  9. 9.Sara spent ₹51, which is 30% of the pocket money. How much pocket money did Sara have, in rupees?
  10. 10.118 is 40% of ?
  11. 11.30% of a number is 105. What is the number?
  12. 12.33 is 75% of ?
  13. 13.Aarav spent ₹6, which is 60% of the pocket money. How much pocket money did Aarav have, in rupees?
  14. 14.60% of a number is 12. What is the number?
  15. 15.80% of a number is 244. What is the number?
  16. 16.38 is 20% of ?
  17. 17.36 is 15% of ?
  18. 18.Diya spent ₹168, which is 80% of the pocket money. How much pocket money did Diya have, in rupees?
  19. 19.75% of a number is 294. What is the number?
  20. 20.5% of a number is 3. What is the number?
  21. 21.40% of a number is 4. What is the number?
  22. 22.40% of a number is 8. What is the number?
  23. 23.3 is 12% of ?
  24. 24.Rohan spent ₹33, which is 30% of the pocket money. How much pocket money did Rohan have, in rupees?
  25. 25.50% of a number is 101. What is the number?
  26. 26.44 is 80% of ?
  27. 27.133 is 50% of ?
  28. 28.30% of a number is 78. What is the number?
  29. 29.Arjun spent ₹84, which is 40% of the pocket money. How much pocket money did Arjun have, in rupees?
  30. 30.20% of a number is 41. What is the number?
  31. 31.40% of a number is 42. What is the number?
  32. 32.20% of a number is 74. What is the number?
  33. 33.45 is 15% of ?
  34. 34.234 is 60% of ?
  35. 35.112 is 50% of ?
  36. 36.Riya spent ₹58, which is 50% of the pocket money. How much pocket money did Riya have, in rupees?
  37. 37.30 is 12% of ?
  38. 38.25% of a number is 30. What is the number?
  39. 39.Aarav spent ₹16, which is 20% of the pocket money. How much pocket money did Aarav have, in rupees?
  40. 40.Ishaan spent ₹201, which is 60% of the pocket money. How much pocket money did Ishaan have, in rupees?

Answer key

  1. 178
  2. 150
  3. 280
  4. 104
  5. 248
  6. 65
  7. 5
  8. 180
  9. 170
  10. 295
  11. 350
  12. 44
  13. 10
  14. 20
  15. 305
  16. 190
  17. 240
  18. 210
  19. 392
  20. 60
  21. 10
  22. 20
  23. 25
  24. 110
  25. 202
  26. 55
  27. 266
  28. 260
  29. 210
  30. 205
  31. 105
  32. 370
  33. 300
  34. 390
  35. 224
  36. 116
  37. 250
  38. 120
  39. 80
  40. 335

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