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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 130 · 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. 1.9.24 + 6.1 =
  2. 2.Find the LCM of 24 and 18.
  3. 3.The HCF of two numbers is 4 and their LCM is 48. One of the numbers is 16. What is the other number?
  4. 4.How many factors does 98 have?
  5. 5.What is the smallest number you must take away from 499 so that it divides exactly by 6?
  6. 6.Two tanks hold 50 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  7. 7.6/9 + 2/12 =
  8. 8.10 : 6 = 50 : ?
  9. 9.Diya scored 24 marks out of 80 in a test. What percentage did Diya score?
  10. 10.What is 6/7 of 168 km?
  11. 11.A car goes 240 km on 10 litres of petrol. How far can it go on 20 litres (in km)?
  12. 12.A hall floor is 240 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  13. 13.26 + 4 × 2 − 17 =
  14. 14.What is 6/7 of 14 kg?
  15. 15.2 × (25 − 7) + 21 ÷ 7 =
  16. 16.Which of these numbers divides exactly by 4? (a) 1779 (b) 7603 (c) 6772 (d) 8793
  17. 17.How many factors does 26 have?
  18. 18.Which is closest to 605 + 502 + 202? (a) 1500 (b) 1400 (c) 1300 (d) 1200
  19. 19.Tara takes 30 seconds and Pooja takes 48 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?
  20. 20.1/2 + 1/8 =
  21. 21.18.4 ÷ 2 =
  22. 22.Find the HCF of 40 and 32.
  23. 23.What is 1/2 of 8 students?
  24. 24.Write 1/4 as a percent.
  25. 25.Find the HCF of 60 and 48.
  26. 26.The HCF of two numbers is 3 and their LCM is 216. One of the numbers is 27. What is the other number?
  27. 27.Round 42443 to the nearest ten.
  28. 28.What is 60% of 340?
  29. 29.The HCF of two numbers is 3 and their LCM is 90. One of the numbers is 15. What is the other number?
  30. 30.Which of these numbers divides exactly by 6? (a) 5038 (b) 8482 (c) 4516 (d) 1734
  31. 31.Find the LCM of 42 and 54.
  32. 32.Divide ₹66 between Saanvi and Kabir in the ratio 5 : 1. How much does Kabir get (in ₹)?
  33. 33.A hostel has enough food for 3 students for 11 days. How many days will the same food last for 11 students?
  34. 34.3/5 of 40 + 9 × 8 =
  35. 35.How many factors does 70 have?
  36. 36.8/10 × 2/5 =
  37. 37.4/9 × 1/2 =
  38. 38.Round 49.47 to one decimal place. =
  39. 39.Three temple bells ring every 10, 30 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.What is 5% of 40?

Answer key

  1. 15.34
  2. 72
  3. 12
  4. 6
  5. 1
  6. 10
  7. 5/6
  8. 30
  9. 30
  10. 144
  11. 480
  12. 40
  13. 17
  14. 12
  15. 39
  16. 6772
  17. 4
  18. 1300
  19. 240
  20. 5/8
  21. 9.2
  22. 8
  23. 4
  24. 25
  25. 12
  26. 24
  27. 42440
  28. 204
  29. 18
  30. 1734
  31. 378
  32. 11
  33. 3
  34. 96
  35. 8
  36. 8/25
  37. 2/9
  38. 49.5
  39. 120
  40. 2

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