← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 121 · 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.Two tanks hold 80 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  2. 2.What is the smallest number you must take away from 139 so that it divides exactly by 4?
  3. 3.Two tanks hold 270 litres and 210 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  4. 4.Three temple bells ring every 15, 24 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.What is 2/5 of 30 litres?
  6. 6.3/7 + 4/12 =
  7. 7.Round 69.61 to one decimal place. =
  8. 8.5 : 12 = 35 : ?
  9. 9.Divide ₹462 between Ananya and Aarav in the ratio 8 : 3. How much does Aarav get (in ₹)?
  10. 10.5.72 + 6.1 =
  11. 11.Find the LCM of 2, 12 and 14.
  12. 12.What is 150% of 480?
  13. 13.The HCF of two numbers is 4 and their LCM is 96. One of the numbers is 12. What is the other number?
  14. 14.Round 23.16 to one decimal place. =
  15. 15.What is the smallest number you must take away from 258 so that it divides exactly by 7?
  16. 16.Two tanks hold 80 litres and 360 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  17. 17.Find the HCF of 21 and 56.
  18. 18.Round 83690 to the nearest hundred.
  19. 19.A car goes 180 km on 10 litres of petrol. How far can it go on 4 litres (in km)?
  20. 20.If 3 bottles of juice cost ₹48, how much do 20 bottles of juice cost (in ₹)?
  21. 21.2.12 + 4.4 =
  22. 22.Find the LCM of 40 and 35.
  23. 23.Round 42886 to the nearest ten.
  24. 24.Find the smallest number bigger than 12 that leaves a remainder of 4 when divided by 6, 12 or 10.
  25. 25.A hall floor is 210 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  26. 26.If 5 kites cost ₹240, how much do 12 kites cost (in ₹)?
  27. 27.Round 96871 to the nearest hundred.
  28. 28.What is the smallest number you must take away from 350 so that it divides exactly by 4?
  29. 29.5.6 ÷ 2 =
  30. 30.Find the LCM of 5, 8 and 10.
  31. 31.What is 6/7 of 112 kg?
  32. 32.5/9 × 1/2 =
  33. 33.12 : 11 = 96 : ?
  34. 34.The HCF of two numbers is 8 and their LCM is 48. One of the numbers is 16. What is the other number?
  35. 35.5 : 7 = 35 : ?
  36. 36.What is the smallest number you must take away from 357 so that it divides exactly by 9?
  37. 37.Find the HCF of 42 and 30.
  38. 38.How many factors does 32 have?
  39. 39.Round 94208 to the nearest thousand.
  40. 40.(8 + 5) × 7 − 21 =

Answer key

  1. 40
  2. 3
  3. 30
  4. 120
  5. 12
  6. 16/21
  7. 69.6
  8. 84
  9. 126
  10. 11.82
  11. 84
  12. 720
  13. 32
  14. 23.2
  15. 6
  16. 40
  17. 7
  18. 83700
  19. 72
  20. 320
  21. 6.52
  22. 280
  23. 42890
  24. 64
  25. 28
  26. 576
  27. 96900
  28. 2
  29. 2.8
  30. 40
  31. 96
  32. 5/18
  33. 88
  34. 24
  35. 49
  36. 6
  37. 6
  38. 6
  39. 94000
  40. 70

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