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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 829 · 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.The HCF of two numbers is 8 and their LCM is 144. One of the numbers is 16. What is the other number?
  2. 2.The HCF of two numbers is 5 and their LCM is 315. One of the numbers is 35. What is the other number?
  3. 3.120% of a number is 12. What is the number?
  4. 4.If 5 bottles of juice cost ₹225, how much do 16 bottles of juice cost (in ₹)?
  5. 5.Which of these numbers divides exactly by 9? (a) 2619 (b) 2977 (c) 9066 (d) 2670
  6. 6.Which is closest to 596 + 404 + 196? (a) 1100 (b) 1300 (c) 1200 (d) 1400
  7. 7.What is 15% of 160?
  8. 8.Divide ₹150 between Ananya and Saanvi in the ratio 1 : 2. How much does Ananya get (in ₹)?
  9. 9.71.1 ÷ 9 =
  10. 10.A hall floor is 120 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  11. 11.4 : 3 = 36 : ?
  12. 12.6/7 × 10/11 =
  13. 13.28 − 28 ÷ 7 × 5 =
  14. 14.6 painters can paint a school in 28 days. How many days would 24 painters take, working at the same speed?
  15. 15.53.6 ÷ 8 =
  16. 16.21 ÷ 7 × 8 + 26 =
  17. 17.A hostel has enough food for 12 students for 6 days. How many days will the same food last for 3 students?
  18. 18.Find the LCM of 6, 3 and 14.
  19. 19.What is the smallest number you must take away from 272 so that it divides exactly by 13?
  20. 20.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 5, 12 or 6.
  21. 21.Divide ₹42 between Meera and Priya in the ratio 2 : 5. How much does Meera get (in ₹)?
  22. 22.What is 5/8 of 104 litres?
  23. 23.Three temple bells ring every 10, 12 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  24. 24.Divide ₹320 between Ishaan and Saanvi in the ratio 9 : 1. How much does Ishaan get (in ₹)?
  25. 25.Three temple bells ring every 20, 8 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  26. 26.The ratio of boys to girls in a class is 5 : 2. There are 35 boys. How many girls are there?
  27. 27.Which of these numbers divides exactly by 4? (a) 4411 (b) 3299 (c) 9269 (d) 7812
  28. 28.1/3 of 33 + 7 × 5 =
  29. 29.8.4 × 7 =
  30. 30.26.4 ÷ 4 =
  31. 31.Find the LCM of 27 and 6.
  32. 32.How many factors does 45 have?
  33. 33.The ratio of boys to girls in a class is 1 : 5. There are 3 boys. How many girls are there?
  34. 34.3.99 + 1.7 =
  35. 35.Write 18/25 as a percent.
  36. 36.A hall floor is 315 cm long and 225 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  37. 37.Which of these numbers divides exactly by 4? (a) 4016 (b) 1885 (c) 8785 (d) 6329
  38. 38.Which of these numbers divides exactly by 6? (a) 1627 (b) 1292 (c) 2052 (d) 6503
  39. 39.What percent of 250 is 240?
  40. 40.How many factors does 70 have?

Answer key

  1. 72
  2. 45
  3. 10
  4. 720
  5. 2619
  6. 1200
  7. 24
  8. 50
  9. 7.9
  10. 6
  11. 27
  12. 60/77
  13. 8
  14. 7
  15. 6.7
  16. 50
  17. 24
  18. 42
  19. 12
  20. 62
  21. 12
  22. 65
  23. 60
  24. 288
  25. 40
  26. 14
  27. 7812
  28. 46
  29. 58.8
  30. 6.6
  31. 54
  32. 6
  33. 15
  34. 5.69
  35. 72
  36. 35
  37. 4016
  38. 2052
  39. 96
  40. 8

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