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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 814 · 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.Find the LCM of 6, 10 and 4.
  2. 2.Find the smallest number bigger than 12 that leaves a remainder of 3 when divided by 12, 5 or 4.
  3. 3.Write 11/25 as a percent.
  4. 4.Which is closest to 403 + 95 + 299? (a) 800 (b) 700 (c) 1000 (d) 900
  5. 5.If 9 kg of rice costs ₹513, how many kg can you buy for ₹741?
  6. 6.How many factors does 40 have?
  7. 7.If 7 kg of rice costs ₹161, how many kg can you buy for ₹115?
  8. 8.Which is closest to 1397 ÷ 19? (a) 70 (b) 35 (c) 140 (d) 700
  9. 9.2/4 + 6/8 =
  10. 10.Which of these numbers divides exactly by 3? (a) 9954 (b) 2915 (c) 3130 (d) 9689
  11. 11.7 × (20 − 11) + 96 ÷ 8 =
  12. 12.What percent of 50 is 15?
  13. 13.5/12 + 4/5 =
  14. 14.2/3 × 10/11 =
  15. 15.Three temple bells ring every 4, 30 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  16. 16.Round 45.16 to one decimal place. =
  17. 17.Write 23/50 as a percent.
  18. 18.The ratio of boys to girls in a class is 8 : 7. There are 72 boys. How many girls are there?
  19. 19.If 12 cricket balls cost ₹48, how much do 10 cricket balls cost (in ₹)?
  20. 20.Divide ₹212 between Zoya and Sneha in the ratio 3 : 1. How much does Sneha get (in ₹)?
  21. 21.Find the HCF of 45 and 36.
  22. 22.Which is closest to 2700 ÷ 29? (a) 900 (b) 45 (c) 90 (d) 180
  23. 23.How many factors does 77 have?
  24. 24.If 3 kg of rice costs ₹213, how many kg can you buy for ₹568?
  25. 25.The ratio of boys to girls in a class is 7 : 1. There are 63 boys. How many girls are there?
  26. 26.40 ÷ 8 × 5 + 9 =
  27. 27.9.71 + 1.3 =
  28. 28.Find the HCF of 42 and 30.
  29. 29.A hostel has enough food for 4 students for 15 days. How many days will the same food last for 20 students?
  30. 30.How many factors does 28 have?
  31. 31.The HCF of two numbers is 3 and their LCM is 72. One of the numbers is 24. What is the other number?
  32. 32.Two tanks hold 60 litres and 140 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  33. 33.Ishaan takes 48 seconds and Karan 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?
  34. 34.Sneha takes 40 seconds and Isha 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?
  35. 35.What is 1/2 of 20 km?
  36. 36.Divide ₹108 between Kabir and Rohan in the ratio 7 : 5. How much does Kabir get (in ₹)?
  37. 37.Find the LCM of 10, 4 and 6.
  38. 38.4/9 of 45 + 4 × 2 =
  39. 39.Which is closest to 803 × 60? (Round each number first.) (a) 48000 (b) 4800 (c) 96000 (d) 480000
  40. 40.8.43 + 6.3 =

Answer key

  1. 60
  2. 63
  3. 44
  4. 800
  5. 13
  6. 8
  7. 5
  8. 70
  9. 5/4
  10. 9954
  11. 75
  12. 30
  13. 73/60
  14. 20/33
  15. 60
  16. 45.2
  17. 46
  18. 63
  19. 40
  20. 53
  21. 9
  22. 90
  23. 4
  24. 8
  25. 9
  26. 34
  27. 11.01
  28. 6
  29. 3
  30. 6
  31. 9
  32. 20
  33. 144
  34. 360
  35. 10
  36. 63
  37. 60
  38. 28
  39. 48000
  40. 14.73

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