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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 230 · 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.How many factors does 25 have?
  2. 2.8/11 − 2/4 =
  3. 3.If 8 kg of rice costs ₹704, how many kg can you buy for ₹792?
  4. 4.Which of these numbers divides exactly by 9? (a) 4159 (b) 6737 (c) 9468 (d) 1666
  5. 5.Write 3/4 as a percent.
  6. 6.The HCF of two numbers is 2 and their LCM is 28. One of the numbers is 4. What is the other number?
  7. 7.What percent of 250 is 210?
  8. 8.3 : 5 = 24 : ?
  9. 9.Aditya takes 60 seconds and Rohan takes 54 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?
  10. 10.The HCF of two numbers is 3 and their LCM is 42. One of the numbers is 21. What is the other number?
  11. 11.A hall floor is 200 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  12. 12.Which is closest to 804 × 72? (Round each number first.) (a) 112000 (b) 5600 (c) 56000 (d) 560000
  13. 13.The HCF of two numbers is 4 and their LCM is 72. One of the numbers is 8. What is the other number?
  14. 14.Write 2/5 as a percent.
  15. 15.What is 4/9 of 135 kg?
  16. 16.33 + 3 × 12 − 14 =
  17. 17.If 5 kg of rice costs ₹400, how many kg can you buy for ₹880?
  18. 18.What is 5% of 340?
  19. 19.What is the smallest number you must take away from 967 so that it divides exactly by 9?
  20. 20.Find the HCF of 80 and 70.
  21. 21.Round 35241 to the nearest hundred.
  22. 22.If 3 kites cost ₹78, how much do 6 kites cost (in ₹)?
  23. 23.If 9 pens cost ₹414, how much do 17 pens cost (in ₹)?
  24. 24.11 : 7 = 77 : ?
  25. 25.Find the third proportional to 6 and 24 (that is, 6 : 24 = 24 : ?).
  26. 26.If 2 kg of rice costs ₹172, how many kg can you buy for ₹430?
  27. 27.If 2 kg of rice costs ₹108, how many kg can you buy for ₹486?
  28. 28.Which is closest to 602 + 100 + 901? (a) 1600 (b) 1500 (c) 1700 (d) 1800
  29. 29.If 9 bottles of juice cost ₹252, how much do 8 bottles of juice cost (in ₹)?
  30. 30.Which is closest to 303 × 80? (Round each number first.) (a) 48000 (b) 2400 (c) 24000 (d) 240000
  31. 31.Divide ₹286 between Sneha and Rahul in the ratio 2 : 9. How much does Rahul get (in ₹)?
  32. 32.A hall floor is 200 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  33. 33.Find the LCM of 36 and 8.
  34. 34.Find the HCF of 10 and 6.
  35. 35.Which of these numbers divides exactly by 4? (a) 4921 (b) 4893 (c) 6931 (d) 2140
  36. 36.1/2 × 5/6 =
  37. 37.What is 150% of 40?
  38. 38.Find the HCF of 33 and 88.
  39. 39.15 ÷ 3 × 8 + 29 =
  40. 40.Aditya takes 60 seconds and Dev 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?

Answer key

  1. 3
  2. 5/22
  3. 9
  4. 9468
  5. 75
  6. 14
  7. 84
  8. 40
  9. 540
  10. 6
  11. 24
  12. 56000
  13. 36
  14. 40
  15. 60
  16. 55
  17. 11
  18. 17
  19. 4
  20. 10
  21. 35200
  22. 156
  23. 782
  24. 49
  25. 96
  26. 5
  27. 9
  28. 1600
  29. 224
  30. 24000
  31. 234
  32. 10
  33. 72
  34. 2
  35. 2140
  36. 5/12
  37. 60
  38. 11
  39. 69
  40. 180

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