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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 352 · 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.Two tanks hold 400 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  2. 2.If 10 mangoes cost ₹100, how much do 18 mangoes cost (in ₹)?
  3. 3.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 3 or 12.
  4. 4.Find the HCF of 26 and 39.
  5. 5.What is the smallest number you must take away from 975 so that it divides exactly by 8?
  6. 6.47 + 4 × 12 − 46 =
  7. 7.What is 7/10 of ₹210?
  8. 8.How many factors does 24 have?
  9. 9.Find the LCM of 36 and 20.
  10. 10.3.93 + 7.9 =
  11. 11.Which is closest to 993 ÷ 49? (a) 10 (b) 40 (c) 200 (d) 20
  12. 12.Find the HCF of 28 and 8.
  13. 13.Which of these numbers divides exactly by 4? (a) 6454 (b) 9575 (c) 6826 (d) 1096
  14. 14.A hostel has enough food for 12 students for 18 days. How many days will the same food last for 6 students?
  15. 15.Which is closest to 897 + 796 + 697? (a) 2600 (b) 2500 (c) 2400 (d) 2300
  16. 16.The ratio of boys to girls in a class is 1 : 4. There are 9 boys. How many girls are there?
  17. 17.Find the LCM of 3, 5 and 10.
  18. 18.64.4 ÷ 7 =
  19. 19.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
  20. 20.4/7 + 3/6 =
  21. 21.Which of these numbers divides exactly by 3? (a) 1663 (b) 9545 (c) 3900 (d) 1075
  22. 22.Round 19.41 to one decimal place. =
  23. 23.A car goes 64 km on 8 litres of petrol. How far can it go on 21 litres (in km)?
  24. 24.Divide ₹440 between Ishaan and Priya in the ratio 7 : 4. How much does Ishaan get (in ₹)?
  25. 25.Divide ₹592 between Rahul and Manav in the ratio 7 : 9. How much does Manav get (in ₹)?
  26. 26.The HCF of two numbers is 7 and their LCM is 147. One of the numbers is 49. What is the other number?
  27. 27.Find the LCM of 20 and 8.
  28. 28.How many factors does 35 have?
  29. 29.What percent of 20 is 9?
  30. 30.Find the LCM of 10, 5 and 3.
  31. 31.If 8 pens cost ₹104, how much do 2 pens cost (in ₹)?
  32. 32.Round 48.43 to one decimal place. =
  33. 33.What is 60% of 180?
  34. 34.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  35. 35.If 12 notebooks cost ₹720, how much do 8 notebooks cost (in ₹)?
  36. 36.Round 65.51 to one decimal place. =
  37. 37.Which is closest to 97 + 798 + 295? (a) 1400 (b) 1300 (c) 1100 (d) 1200
  38. 38.Round 25.33 to one decimal place. =
  39. 39.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 3, 4 or 8.
  40. 40.6/8 + 1/3 =

Answer key

  1. 50
  2. 180
  3. 61
  4. 13
  5. 7
  6. 49
  7. 147
  8. 8
  9. 180
  10. 11.83
  11. 20
  12. 4
  13. 1096
  14. 36
  15. 2400
  16. 36
  17. 30
  18. 9.2
  19. 81
  20. 15/14
  21. 3900
  22. 19.4
  23. 168
  24. 280
  25. 333
  26. 21
  27. 40
  28. 4
  29. 45
  30. 30
  31. 26
  32. 48.4
  33. 108
  34. 54
  35. 480
  36. 65.5
  37. 1200
  38. 25.3
  39. 25
  40. 13/12

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