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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 534 · 40 questions
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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.If 6 kites cost ₹132, how much do 10 kites cost (in ₹)?
  2. 2.Which of these numbers divides exactly by 11? (a) 3049 (b) 6432 (c) 6110 (d) 3080
  3. 3.Ananya takes 45 seconds and Kabir takes 40 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  4. 4.Which of these numbers divides exactly by 4? (a) 2242 (b) 6649 (c) 7547 (d) 8884
  5. 5.Two tanks hold 15 litres and 40 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  6. 6.4.9 × 3 =
  7. 7.3 : 5 = 12 : ?
  8. 8.Write 1/4 as a percent.
  9. 9.Find the LCM of 3, 12 and 13.
  10. 10.Two tanks hold 25 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  11. 11.What is the smallest number you must add to 836 so that it divides exactly by 9?
  12. 12.26 − 16 ÷ 4 × 5 =
  13. 13.The HCF of two numbers is 8 and their LCM is 360. One of the numbers is 72. What is the other number?
  14. 14.Kabir takes 72 seconds and Ishaan takes 40 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  15. 15.How many factors does 77 have?
  16. 16.The ratio of boys to girls in a class is 3 : 4. There are 18 boys. How many girls are there?
  17. 17.Which is closest to 1804 ÷ 31? (a) 30 (b) 60 (c) 600 (d) 120
  18. 18.Which is closest to 601 ÷ 29? (a) 40 (b) 20 (c) 200 (d) 10
  19. 19.Ishaan scored 2 marks out of 25 in a test. What percentage did Ishaan score?
  20. 20.35 ÷ 7 × 3 + 5 =
  21. 21.What is the smallest number you must take away from 749 so that it divides exactly by 12?
  22. 22.Find the LCM of 42 and 54.
  23. 23.How many factors does 72 have?
  24. 24.How many factors does 60 have?
  25. 25.A hostel has enough food for 5 students for 21 days. How many days will the same food last for 7 students?
  26. 26.1/5 × 1/10 =
  27. 27.Round 36.88 to one decimal place. =
  28. 28.The HCF of two numbers is 4 and their LCM is 160. One of the numbers is 32. What is the other number?
  29. 29.What is the smallest number you must add to 290 so that it divides exactly by 8?
  30. 30.What is 10% of 120?
  31. 31.Round 27.42 to one decimal place. =
  32. 32.Three temple bells ring every 12, 20 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  33. 33.Find the LCM of 2, 8 and 15.
  34. 34.(19 + 12) × 2 − 11 =
  35. 35.1/2 − 1/3 =
  36. 36.75% of a number is 240. What is the number?
  37. 37.Find the LCM of 21 and 18.
  38. 38.6/9 − 2/8 =
  39. 39.Tara scored 1 marks out of 25 in a test. What percentage did Tara score?
  40. 40.Divide ₹160 between Priya and Isha in the ratio 9 : 1. How much does Priya get (in ₹)?

Answer key

  1. 220
  2. 3080
  3. 360
  4. 8884
  5. 5
  6. 14.7
  7. 20
  8. 25
  9. 156
  10. 5
  11. 1
  12. 6
  13. 40
  14. 360
  15. 4
  16. 24
  17. 60
  18. 20
  19. 8
  20. 20
  21. 5
  22. 378
  23. 12
  24. 12
  25. 15
  26. 1/50
  27. 36.9
  28. 20
  29. 6
  30. 12
  31. 27.4
  32. 60
  33. 120
  34. 51
  35. 1/6
  36. 320
  37. 126
  38. 5/12
  39. 4
  40. 144

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