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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 460 · 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. 1.3/4 − 1/2 =
  2. 2.5.64 + 5.8 =
  3. 3.Two tanks hold 40 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  4. 4.How many factors does 91 have?
  5. 5.26 + 5 × 2 − 24 =
  6. 6.Which is closest to 500 × 62? (Round each number first.) (a) 3000 (b) 300000 (c) 30000 (d) 60000
  7. 7.If 5 kg of rice costs ₹205, how many kg can you buy for ₹492?
  8. 8.Find the LCM of 30 and 48.
  9. 9.Find the LCM of 8 and 20.
  10. 10.12% of a number is 66. What is the number?
  11. 11.A hostel has enough food for 2 students for 14 days. How many days will the same food last for 4 students?
  12. 12.Which is closest to 703 × 19? (Round each number first.) (a) 14000 (b) 1400 (c) 140000 (d) 28000
  13. 13.If 10 bottles of juice cost ₹530, how much do 8 bottles of juice cost (in ₹)?
  14. 14.Divide ₹216 between Ananya and Manav in the ratio 7 : 1. How much does Ananya get (in ₹)?
  15. 15.What is 150% of 440?
  16. 16.The HCF of two numbers is 2 and their LCM is 30. One of the numbers is 6. What is the other number?
  17. 17.Meera takes 40 seconds and Diya takes 60 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?
  18. 18.Round 23730 to the nearest hundred.
  19. 19.The ratio of boys to girls in a class is 5 : 6. There are 35 boys. How many girls are there?
  20. 20.How many factors does 94 have?
  21. 21.If 6 kites cost ₹234, how much do 3 kites cost (in ₹)?
  22. 22.Find the LCM of 3, 12 and 13.
  23. 23.Find the HCF of 72 and 16.
  24. 24.How many factors does 24 have?
  25. 25.1/7 × 5/6 =
  26. 26.Which is closest to 802 × 32? (Round each number first.) (a) 2400 (b) 24000 (c) 240000 (d) 48000
  27. 27.9.2 × 4 =
  28. 28.Meera takes 60 seconds and Karan takes 75 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?
  29. 29.The ratio of boys to girls in a class is 8 : 3. There are 24 boys. How many girls are there?
  30. 30.5/6 × 4/8 =
  31. 31.Find the HCF of 126 and 112.
  32. 32.Which is closest to 703 × 31? (Round each number first.) (a) 2100 (b) 210000 (c) 42000 (d) 21000
  33. 33.The HCF of two numbers is 2 and their LCM is 12. One of the numbers is 6. What is the other number?
  34. 34.Which is closest to 1399 ÷ 21? (a) 140 (b) 70 (c) 700 (d) 35
  35. 35.5.24 + 1.4 =
  36. 36.3/4 of 48 + 3 × 2 =
  37. 37.What is the smallest number you must add to 166 so that it divides exactly by 7?
  38. 38.40 ÷ 5 × 4 + 9 =
  39. 39.Which is closest to 4501 ÷ 49? (a) 180 (b) 90 (c) 45 (d) 900
  40. 40.Two tanks hold 40 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?

Answer key

  1. 1/4
  2. 11.44
  3. 20
  4. 4
  5. 12
  6. 30000
  7. 12
  8. 240
  9. 40
  10. 550
  11. 7
  12. 14000
  13. 424
  14. 189
  15. 660
  16. 10
  17. 120
  18. 23700
  19. 42
  20. 4
  21. 117
  22. 156
  23. 8
  24. 8
  25. 5/42
  26. 24000
  27. 36.8
  28. 300
  29. 9
  30. 5/12
  31. 14
  32. 21000
  33. 4
  34. 70
  35. 6.64
  36. 42
  37. 2
  38. 41
  39. 90
  40. 5

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