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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 631 · 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.Which of these numbers divides exactly by 9? (a) 1641 (b) 9474 (c) 4874 (d) 4356
  2. 2.Find the LCM of 14, 13 and 2.
  3. 3.2 painters can paint a school in 11 days. How many days would 11 painters take, working at the same speed?
  4. 4.2/4 + 2/9 =
  5. 5.11 : 9 = 77 : ?
  6. 6.The ratio of boys to girls in a class is 1 : 4. There are 7 boys. How many girls are there?
  7. 7.Find the LCM of 6 and 14.
  8. 8.9 ÷ 3 × 3 + 4 =
  9. 9.A car goes 102 km on 6 litres of petrol. How far can it go on 38 litres (in km)?
  10. 10.Which is closest to 796 + 803 + 400? (a) 2100 (b) 2000 (c) 2200 (d) 1900
  11. 11.7.4 × 9 =
  12. 12.What is 150% of 524?
  13. 13.The HCF of two numbers is 3 and their LCM is 84. One of the numbers is 21. What is the other number?
  14. 14.The ratio of boys to girls in a class is 7 : 4. There are 70 boys. How many girls are there?
  15. 15.The ratio of boys to girls in a class is 1 : 7. There are 3 boys. How many girls are there?
  16. 16.Which of these numbers divides exactly by 9? (a) 1420 (b) 7674 (c) 3468 (d) 5175
  17. 17.Write 3/4 as a percent.
  18. 18.A car goes 108 km on 6 litres of petrol. How far can it go on 29 litres (in km)?
  19. 19.What is the smallest number you must take away from 482 so that it divides exactly by 13?
  20. 20.What is the smallest number you must add to 826 so that it divides exactly by 9?
  21. 21.If 5 erasers cost ₹185, how much do 18 erasers cost (in ₹)?
  22. 22.7 : 2 = 14 : ?
  23. 23.The ratio of boys to girls in a class is 7 : 9. There are 28 boys. How many girls are there?
  24. 24.3/7 of 14 + 6 × 4 =
  25. 25.What percent of 400 is 144?
  26. 26.3 painters can paint a school in 11 days. How many days would 11 painters take, working at the same speed?
  27. 27.Find the LCM of 6, 2 and 13.
  28. 28.The ratio of boys to girls in a class is 7 : 6. There are 49 boys. How many girls are there?
  29. 29.The HCF of two numbers is 9 and their LCM is 315. One of the numbers is 45. What is the other number?
  30. 30.Divide ₹24 between Vivaan and Kabir in the ratio 1 : 3. How much does Vivaan get (in ₹)?
  31. 31.Three temple bells ring every 30, 4 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  32. 32.If 5 kg of rice costs ₹305, how many kg can you buy for ₹732?
  33. 33.8 painters can paint a school in 7 days. How many days would 14 painters take, working at the same speed?
  34. 34.Round 86975 to the nearest thousand.
  35. 35.If 3 pencil boxes cost ₹57, how much do 17 pencil boxes cost (in ₹)?
  36. 36.Which of these numbers divides exactly by 9? (a) 4539 (b) 7578 (c) 2807 (d) 1430
  37. 37.Two tanks hold 100 litres and 125 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  38. 38.Which is closest to 1591 ÷ 39? (a) 20 (b) 40 (c) 80 (d) 400
  39. 39.Find the LCM of 32 and 12.
  40. 40.Which is closest to 1606 ÷ 41? (a) 20 (b) 400 (c) 40 (d) 80

Answer key

  1. 4356
  2. 182
  3. 2
  4. 13/18
  5. 63
  6. 28
  7. 42
  8. 13
  9. 646
  10. 2000
  11. 66.6
  12. 786
  13. 12
  14. 40
  15. 21
  16. 5175
  17. 75
  18. 522
  19. 1
  20. 2
  21. 666
  22. 4
  23. 36
  24. 30
  25. 36
  26. 3
  27. 78
  28. 42
  29. 63
  30. 6
  31. 60
  32. 12
  33. 4
  34. 87000
  35. 323
  36. 7578
  37. 25
  38. 40
  39. 96
  40. 40

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