← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 117 · 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.A car goes 72 km on 3 litres of petrol. How far can it go on 32 litres (in km)?
  2. 2.The HCF of two numbers is 2 and their LCM is 24. One of the numbers is 6. What is the other number?
  3. 3.Find the LCM of 13, 6 and 9.
  4. 4.A hall floor is 350 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  5. 5.How many factors does 15 have?
  6. 6.The HCF of two numbers is 3 and their LCM is 54. One of the numbers is 6. What is the other number?
  7. 7.28 − 24 ÷ 8 × 9 =
  8. 8.If 9 erasers cost ₹72, how much do 8 erasers cost (in ₹)?
  9. 9.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  10. 10.A car goes 108 km on 12 litres of petrol. How far can it go on 4 litres (in km)?
  11. 11.(8 + 5) × 5 − 22 =
  12. 12.If 9 kg of rice costs ₹495, how many kg can you buy for ₹550?
  13. 13.3.4 × 4 =
  14. 14.3/4 of 24 + 4 × 2 =
  15. 15.Which is closest to 597 + 604 + 603? (a) 1700 (b) 2000 (c) 1900 (d) 1800
  16. 16.Pooja takes 60 seconds and Tara 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?
  17. 17.Divide ₹35 between Saanvi and Isha in the ratio 1 : 4. How much does Isha get (in ₹)?
  18. 18.The HCF of two numbers is 6 and their LCM is 36. One of the numbers is 18. What is the other number?
  19. 19.Find the HCF of 20 and 12.
  20. 20.50 + 5 × 9 − 24 =
  21. 21.If 2 kg of rice costs ₹74, how many kg can you buy for ₹444?
  22. 22.63 − 27 ÷ 9 × 8 =
  23. 23.A hostel has enough food for 4 students for 24 days. How many days will the same food last for 8 students?
  24. 24.Find the HCF of 49 and 21.
  25. 25.Which is closest to 597 × 52? (Round each number first.) (a) 60000 (b) 3000 (c) 300000 (d) 30000
  26. 26.50.4 ÷ 8 =
  27. 27.36 ÷ 4 × 4 + 5 =
  28. 28.7/8 of 56 + 5 × 4 =
  29. 29.Find the LCM of 4, 9 and 6.
  30. 30.28 ÷ 4 × 8 + 2 =
  31. 31.Which is closest to 1805 ÷ 29? (a) 30 (b) 120 (c) 600 (d) 60
  32. 32.7/9 − 1/6 =
  33. 33.2.6 × 9 =
  34. 34.5 : 15 = 45 : ?
  35. 35.42 + 5 × 3 − 11 =
  36. 36.Dev takes 90 seconds and Pooja 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?
  37. 37.The ratio of boys to girls in a class is 9 : 8. There are 90 boys. How many girls are there?
  38. 38.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 10, 15 or 6.
  39. 39.How many factors does 64 have?
  40. 40.A hostel has enough food for 12 students for 20 days. How many days will the same food last for 15 students?

Answer key

  1. 768
  2. 8
  3. 234
  4. 21
  5. 4
  6. 27
  7. 1
  8. 64
  9. 16
  10. 36
  11. 43
  12. 10
  13. 13.6
  14. 26
  15. 1800
  16. 180
  17. 28
  18. 12
  19. 4
  20. 71
  21. 12
  22. 39
  23. 12
  24. 7
  25. 30000
  26. 6.3
  27. 41
  28. 69
  29. 36
  30. 58
  31. 60
  32. 11/18
  33. 23.4
  34. 135
  35. 46
  36. 360
  37. 80
  38. 32
  39. 7
  40. 16

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude