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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 346 · 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. 1.2 : 11 = 16 : ?
  2. 2.Find the LCM of 12, 15 and 8.
  3. 3.Two tanks hold 210 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  4. 4.Two tanks hold 200 litres and 225 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  5. 5.Two tanks hold 320 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  6. 6.If 3 kg of rice costs ₹234, how many kg can you buy for ₹1170?
  7. 7.Which is closest to 1601 ÷ 41? (a) 80 (b) 20 (c) 400 (d) 40
  8. 8.Divide ₹165 between Sneha and Ananya in the ratio 3 : 8. How much does Ananya get (in ₹)?
  9. 9.Divide ₹128 between Arjun and Aarav in the ratio 1 : 7. How much does Arjun get (in ₹)?
  10. 10.Two tanks hold 100 litres and 140 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  11. 11.The HCF of two numbers is 3 and their LCM is 18. One of the numbers is 6. What is the other number?
  12. 12.37 + 5 × 10 − 7 =
  13. 13.A car goes 27 km on 3 litres of petrol. How far can it go on 40 litres (in km)?
  14. 14.Kabir takes 72 seconds and Aarav takes 30 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?
  15. 15.Find the HCF of 20 and 24.
  16. 16.What is 150% of 96?
  17. 17.Which is closest to 602 × 31? (Round each number first.) (a) 180000 (b) 36000 (c) 18000 (d) 1800
  18. 18.Which is closest to 896 ÷ 29? (a) 300 (b) 15 (c) 30 (d) 60
  19. 19.A hall floor is 150 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  20. 20.Aditya takes 40 seconds and Sneha 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?
  21. 21.15 ÷ 3 × 9 + 1 =
  22. 22.2/12 + 1/3 =
  23. 23.A hostel has enough food for 4 students for 6 days. How many days will the same food last for 6 students?
  24. 24.Find the LCM of 5, 7 and 15.
  25. 25.What is 8/9 of ₹99?
  26. 26.If 2 pencil boxes cost ₹56, how much do 16 pencil boxes cost (in ₹)?
  27. 27.Find the LCM of 14 and 10.
  28. 28.55 − 49 ÷ 7 × 6 =
  29. 29.3/4 − 3/9 =
  30. 30.Find the HCF of 28 and 36.
  31. 31.What percent of 40 is 28?
  32. 32.60 ÷ 5 × 7 + 29 =
  33. 33.42 − 40 ÷ 5 × 4 =
  34. 34.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 6, 3 or 8.
  35. 35.Find the HCF of 22 and 99.
  36. 36.What is 1/5 of 135 km?
  37. 37.What is the smallest number you must take away from 377 so that it divides exactly by 4?
  38. 38.If 11 cricket balls cost ₹132, how much do 8 cricket balls cost (in ₹)?
  39. 39.Find the LCM of 28 and 12.
  40. 40.11 : 4 = 99 : ?

Answer key

  1. 88
  2. 120
  3. 30
  4. 25
  5. 40
  6. 15
  7. 40
  8. 120
  9. 16
  10. 20
  11. 9
  12. 80
  13. 360
  14. 360
  15. 4
  16. 144
  17. 18000
  18. 30
  19. 20
  20. 360
  21. 46
  22. 1/2
  23. 4
  24. 105
  25. 88
  26. 448
  27. 70
  28. 13
  29. 5/12
  30. 4
  31. 70
  32. 113
  33. 10
  34. 25
  35. 11
  36. 27
  37. 1
  38. 96
  39. 84
  40. 36

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