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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 304 · 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. 1.30 + 5 × 3 − 18 =
  2. 2.Which is closest to 1008 ÷ 49? (a) 40 (b) 10 (c) 20 (d) 200
  3. 3.Find the HCF of 45 and 18.
  4. 4.11 : 15 = 55 : ?
  5. 5.Find the HCF of 96 and 36.
  6. 6.Find the LCM of 4 and 6.
  7. 7.Nisha takes 36 seconds and Priya takes 45 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?
  8. 8.A hostel has enough food for 2 students for 4 days. How many days will the same food last for 4 students?
  9. 9.The ratio of boys to girls in a class is 2 : 7. There are 18 boys. How many girls are there?
  10. 10.Round 48.77 to one decimal place. =
  11. 11.Round 61749 to the nearest hundred.
  12. 12.7.12 + 7.5 =
  13. 13.Find the LCM of 24 and 28.
  14. 14.Find the LCM of 7, 4 and 8.
  15. 15.Round 29.19 to one decimal place. =
  16. 16.Pooja takes 50 seconds and Meera takes 90 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?
  17. 17.Round 92.54 to one decimal place. =
  18. 18.What is the smallest number you must take away from 328 so that it divides exactly by 12?
  19. 19.50 + 11 × 2 − 42 =
  20. 20.What is 1/3 of 36 km?
  21. 21.Find the HCF of 12 and 30.
  22. 22.Dev takes 80 seconds and Priya 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?
  23. 23.The ratio of boys to girls in a class is 9 : 2. There are 90 boys. How many girls are there?
  24. 24.(12 + 13) × 5 − 8 =
  25. 25.4/7 − 5/9 =
  26. 26.23 − 16 ÷ 4 × 3 =
  27. 27.Which is closest to 801 + 605 + 295? (a) 1600 (b) 1800 (c) 1700 (d) 1900
  28. 28.Divide ₹741 between Kavya and Dev in the ratio 9 : 4. How much does Kavya get (in ₹)?
  29. 29.The HCF of two numbers is 3 and their LCM is 72. One of the numbers is 24. What is the other number?
  30. 30.How many factors does 37 have?
  31. 31.Kabir takes 48 seconds and Rohan 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?
  32. 32.Find the LCM of 3 and 8.
  33. 33.Which of these numbers divides exactly by 6? (a) 5659 (b) 6444 (c) 4073 (d) 2804
  34. 34.5 × (26 − 24) + 12 ÷ 3 =
  35. 35.Divide ₹473 between Farhan and Aditya in the ratio 3 : 8. How much does Farhan get (in ₹)?
  36. 36.A car goes 192 km on 12 litres of petrol. How far can it go on 25 litres (in km)?
  37. 37.How many factors does 27 have?
  38. 38.Write 19/50 as a percent.
  39. 39.What is the smallest number you must add to 950 so that it divides exactly by 9?
  40. 40.Which is closest to 992 ÷ 49? (a) 10 (b) 20 (c) 200 (d) 40

Answer key

  1. 27
  2. 20
  3. 9
  4. 75
  5. 12
  6. 12
  7. 180
  8. 2
  9. 63
  10. 48.8
  11. 61700
  12. 14.62
  13. 168
  14. 56
  15. 29.2
  16. 450
  17. 92.5
  18. 4
  19. 30
  20. 12
  21. 6
  22. 720
  23. 20
  24. 117
  25. 1/63
  26. 11
  27. 1700
  28. 513
  29. 9
  30. 2
  31. 144
  32. 24
  33. 6444
  34. 14
  35. 129
  36. 400
  37. 4
  38. 38
  39. 4
  40. 20

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