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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 152 · 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.The HCF of two numbers is 5 and their LCM is 30. One of the numbers is 10. What is the other number?
  2. 2.Which of these numbers divides exactly by 9? (a) 1003 (b) 3419 (c) 5716 (d) 3510
  3. 3.Kavya scored 22 marks out of 40 in a test. What percentage did Kavya score?
  4. 4.Three temple bells ring every 20, 5 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.Which of these numbers divides exactly by 8? (a) 4188 (b) 7711 (c) 2231 (d) 3040
  6. 6.16.4 ÷ 2 =
  7. 7.1/8 of 40 + 8 × 3 =
  8. 8.If 3 mangoes cost ₹84, how much do 11 mangoes cost (in ₹)?
  9. 9.Kavya takes 80 seconds and Ananya takes 72 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?
  10. 10.5/11 + 2/3 =
  11. 11.Aditya takes 45 seconds and Manav takes 36 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?
  12. 12.1/3 × 3/12 =
  13. 13.12 : 6 = 36 : ?
  14. 14.Write 1/4 as a percent.
  15. 15.Find the HCF of 9 and 6.
  16. 16.What is the smallest number you must take away from 637 so that it divides exactly by 9?
  17. 17.How many factors does 87 have?
  18. 18.11 : 15 = 22 : ?
  19. 19.21 ÷ 3 × 9 + 27 =
  20. 20.Find the HCF of 16 and 36.
  21. 21.A hall floor is 100 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  22. 22.The HCF of two numbers is 4 and their LCM is 56. One of the numbers is 28. What is the other number?
  23. 23.How many factors does 20 have?
  24. 24.Which is closest to 1606 ÷ 21? (a) 800 (b) 40 (c) 160 (d) 80
  25. 25.12 + 10 × 3 − 11 =
  26. 26.1/2 + 7/8 =
  27. 27.Two tanks hold 30 litres and 135 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  28. 28.Find the HCF of 14 and 8.
  29. 29.Find the LCM of 6, 8 and 7.
  30. 30.A hostel has enough food for 8 students for 23 days. How many days will the same food last for 4 students?
  31. 31.What is 4/7 of ₹42?
  32. 32.Priya takes 80 seconds and Aditya takes 60 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?
  33. 33.45 + 4 × 6 − 16 =
  34. 34.What is the smallest number you must take away from 470 so that it divides exactly by 8?
  35. 35.Which is closest to 504 × 21? (Round each number first.) (a) 20000 (b) 10000 (c) 100000 (d) 1000
  36. 36.1.53 + 4.3 =
  37. 37.A hall floor is 80 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  38. 38.How many factors does 18 have?
  39. 39.Find the LCM of 9, 4 and 10.
  40. 40.4 : 7 = 24 : ?

Answer key

  1. 15
  2. 3510
  3. 55
  4. 60
  5. 3040
  6. 8.2
  7. 29
  8. 308
  9. 720
  10. 37/33
  11. 180
  12. 1/12
  13. 18
  14. 25
  15. 3
  16. 7
  17. 4
  18. 30
  19. 90
  20. 4
  21. 12
  22. 8
  23. 6
  24. 80
  25. 31
  26. 11/8
  27. 15
  28. 2
  29. 168
  30. 46
  31. 24
  32. 240
  33. 53
  34. 6
  35. 10000
  36. 5.83
  37. 12
  38. 6
  39. 180
  40. 42

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