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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 163 · 40 questions
TalentJR

The method (Spot the type): Read the question and name the topic: HCF/LCM, fraction, ratio, percent … Use that lesson’s method and write each step. Check: is the answer sensible in size and units?

NameDateTime takenScore ___ / 40
  1. 1.What is 12% of 325?
  2. 2.3/5 + 1/4 =
  3. 3.4 painters can paint a school in 6 days. How many days would 3 painters take, working at the same speed?
  4. 4.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  5. 5.(15 + 3) × 9 − 1 =
  6. 6.How many factors does 25 have?
  7. 7.Two tanks hold 90 litres and 50 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  8. 8.Three temple bells ring every 15, 12 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.37 + 7 × 9 − 21 =
  10. 10.Two tanks hold 25 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  11. 11.24 ÷ 4 × 3 + 4 =
  12. 12.55.2 ÷ 6 =
  13. 13.Divide ₹117 between Diya and Rohan in the ratio 6 : 7. How much does Diya get (in ₹)?
  14. 14.What percent of 20 is 10?
  15. 15.What is 25% of 424?
  16. 16.Three temple bells ring every 12, 4 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  17. 17.What is the smallest number you must add to 680 so that it divides exactly by 6?
  18. 18.50% of a number is 73. What is the number?
  19. 19.Tara scored 44 marks out of 80 in a test. What percentage did Tara score?
  20. 20.Find the third proportional to 7 and 21 (that is, 7 : 21 = 21 : ?).
  21. 21.Two tanks hold 270 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  22. 22.Find the HCF of 42 and 28.
  23. 23.What is 80% of 210?
  24. 24.150% of a number is 27. What is the number?
  25. 25.What percent of 400 is 228?
  26. 26.What is 50% of 486?
  27. 27.The HCF of two numbers is 2 and their LCM is 30. One of the numbers is 10. What is the other number?
  28. 28.Two tanks hold 450 litres and 350 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 5, 3 or 8.
  30. 30.Round 30751 to the nearest thousand.
  31. 31.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 10, 4 or 15.
  32. 32.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  33. 33.Find the HCF of 65 and 52.
  34. 34.Write 11/20 as a percent.
  35. 35.Which is closest to 296 + 704 + 196? (a) 1100 (b) 1300 (c) 1400 (d) 1200
  36. 36.What is 1/6 of 24 kg?
  37. 37.Find the HCF of 8 and 10.
  38. 38.The HCF of two numbers is 9 and their LCM is 567. One of the numbers is 81. What is the other number?
  39. 39.What is the smallest number you must take away from 649 so that it divides exactly by 12?
  40. 40.Round 49581 to the nearest hundred.

Answer key

  1. 39
  2. 17/20
  3. 8
  4. 50
  5. 161
  6. 3
  7. 10
  8. 120
  9. 79
  10. 5
  11. 22
  12. 9.2
  13. 54
  14. 50
  15. 106
  16. 36
  17. 4
  18. 146
  19. 55
  20. 63
  21. 30
  22. 14
  23. 168
  24. 18
  25. 57
  26. 243
  27. 6
  28. 50
  29. 122
  30. 31000
  31. 61
  32. 128
  33. 13
  34. 55
  35. 1200
  36. 4
  37. 2
  38. 63
  39. 1
  40. 49600

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