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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 540 · 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 7 and their LCM is 126. One of the numbers is 63. What is the other number?
  2. 2.(2 + 19) × 6 − 14 =
  3. 3.Find the LCM of 14, 10 and 4.
  4. 4.Find the LCM of 11, 6 and 2.
  5. 5.33 + 7 × 4 − 17 =
  6. 6.Find the HCF of 14 and 4.
  7. 7.A hostel has enough food for 9 students for 13 days. How many days will the same food last for 3 students?
  8. 8.Which of these numbers divides exactly by 6? (a) 3390 (b) 3076 (c) 4653 (d) 5425
  9. 9.The HCF of two numbers is 8 and their LCM is 288. One of the numbers is 32. What is the other number?
  10. 10.What is 2/3 of 48 km?
  11. 11.A hall floor is 210 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  12. 12.Round 75.73 to one decimal place. =
  13. 13.6.05 + 6.8 =
  14. 14.78 − 36 ÷ 4 × 7 =
  15. 15.49.8 ÷ 6 =
  16. 16.What is 150% of 44?
  17. 17.A car goes 100 km on 10 litres of petrol. How far can it go on 4 litres (in km)?
  18. 18.What percent of 25 is 17?
  19. 19.Which is closest to 800 ÷ 21? (a) 20 (b) 400 (c) 80 (d) 40
  20. 20.What percent of 80 is 28?
  21. 21.Find the LCM of 6 and 27.
  22. 22.Round 89.23 to one decimal place. =
  23. 23.150% of a number is 576. What is the number?
  24. 24.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 12, 4 or 10.
  25. 25.What percent of 500 is 120?
  26. 26.Divide ₹111 between Rohan and Aarav in the ratio 2 : 1. How much does Aarav get (in ₹)?
  27. 27.6 : 11 = 36 : ?
  28. 28.What is 5/9 of 117 km?
  29. 29.Find the LCM of 21 and 6.
  30. 30.Which is closest to 2493 ÷ 51? (a) 50 (b) 100 (c) 25 (d) 500
  31. 31.If 7 kites cost ₹315, how much do 16 kites cost (in ₹)?
  32. 32.Farhan takes 40 seconds and Arjun takes 50 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. 33.4 : 11 = 24 : ?
  34. 34.50% of a number is 200. What is the number?
  35. 35.Which is closest to 794 ÷ 41? (a) 10 (b) 40 (c) 20 (d) 200
  36. 36.What is 120% of 370?
  37. 37.Find the HCF of 70 and 90.
  38. 38.A hostel has enough food for 4 students for 4 days. How many days will the same food last for 8 students?
  39. 39.Find the LCM of 30 and 36.
  40. 40.What percent of 500 is 330?

Answer key

  1. 14
  2. 112
  3. 140
  4. 66
  5. 44
  6. 2
  7. 39
  8. 3390
  9. 72
  10. 32
  11. 35
  12. 75.7
  13. 12.85
  14. 15
  15. 8.3
  16. 66
  17. 40
  18. 68
  19. 40
  20. 35
  21. 54
  22. 89.2
  23. 384
  24. 61
  25. 24
  26. 37
  27. 66
  28. 65
  29. 42
  30. 50
  31. 720
  32. 200
  33. 66
  34. 400
  35. 20
  36. 444
  37. 10
  38. 2
  39. 180
  40. 66

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