← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 450 · 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.If 5 kg of rice costs ₹100, how many kg can you buy for ₹160?
  2. 2.Two tanks hold 160 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  3. 3.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?
  4. 4.Three temple bells ring every 5, 8 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.A hostel has enough food for 2 students for 20 days. How many days will the same food last for 4 students?
  6. 6.What percent of 500 is 130?
  7. 7.What is the smallest number you must add to 443 so that it divides exactly by 6?
  8. 8.Which is closest to 99 + 201 + 295? (a) 700 (b) 800 (c) 600 (d) 500
  9. 9.What is 10% of 320?
  10. 10.Three temple bells ring every 12, 10 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  11. 11.6.06 + 8.7 =
  12. 12.Round 65.73 to one decimal place. =
  13. 13.40.5 ÷ 9 =
  14. 14.How many factors does 35 have?
  15. 15.Find the HCF of 39 and 104.
  16. 16.What is the smallest number you must add to 350 so that it divides exactly by 12?
  17. 17.Three temple bells ring every 8, 15 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  18. 18.Find the HCF of 75 and 120.
  19. 19.Find the LCM of 3, 6 and 7.
  20. 20.12 painters can paint a school in 15 days. How many days would 4 painters take, working at the same speed?
  21. 21.The ratio of boys to girls in a class is 5 : 1. There are 45 boys. How many girls are there?
  22. 22.The ratio of boys to girls in a class is 2 : 3. There are 10 boys. How many girls are there?
  23. 23.Find the HCF of 26 and 91.
  24. 24.Which of these numbers divides exactly by 4? (a) 5248 (b) 8282 (c) 1849 (d) 4349
  25. 25.What is 40% of 220?
  26. 26.Find the LCM of 6 and 8.
  27. 27.If 6 kg of rice costs ₹228, how many kg can you buy for ₹152?
  28. 28.Which is closest to 196 × 68? (Round each number first.) (a) 28000 (b) 14000 (c) 1400 (d) 140000
  29. 29.3 painters can paint a school in 11 days. How many days would 11 painters take, working at the same speed?
  30. 30.The HCF of two numbers is 3 and their LCM is 135. One of the numbers is 15. What is the other number?
  31. 31.Write 13/20 as a percent.
  32. 32.What is the smallest number you must add to 101 so that it divides exactly by 3?
  33. 33.What is the smallest number you must add to 122 so that it divides exactly by 9?
  34. 34.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  35. 35.7.98 + 9.5 =
  36. 36.What is 40% of 80?
  37. 37.1/5 − 1/11 =
  38. 38.(7 + 4) × 4 − 5 =
  39. 39.Round 92.58 to one decimal place. =
  40. 40.Find the LCM of 12 and 15.

Answer key

  1. 8
  2. 20
  3. 40
  4. 40
  5. 10
  6. 26
  7. 1
  8. 600
  9. 32
  10. 60
  11. 14.76
  12. 65.7
  13. 4.5
  14. 4
  15. 13
  16. 10
  17. 120
  18. 15
  19. 42
  20. 45
  21. 9
  22. 15
  23. 13
  24. 5248
  25. 88
  26. 24
  27. 4
  28. 14000
  29. 3
  30. 27
  31. 65
  32. 1
  33. 4
  34. 75
  35. 17.48
  36. 32
  37. 6/55
  38. 39
  39. 92.6
  40. 60

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude