← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 79 · 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. 1.2 : 3 = 18 : ?
  2. 2.8/9 × 2/5 =
  3. 3.4 painters can paint a school in 13 days. How many days would 2 painters take, working at the same speed?
  4. 4.Write 1/2 as a percent.
  5. 5.Find the HCF of 4 and 10.
  6. 6.What is the smallest number you must take away from 895 so that it divides exactly by 11?
  7. 7.Find the third proportional to 7 and 14 (that is, 7 : 14 = 14 : ?).
  8. 8.How many factors does 14 have?
  9. 9.Round 58325 to the nearest thousand.
  10. 10.3 × (15 − 2) + 33 ÷ 3 =
  11. 11.What is 60% of 145?
  12. 12.The HCF of two numbers is 5 and their LCM is 225. One of the numbers is 45. What is the other number?
  13. 13.Write 2/5 as a percent.
  14. 14.8.27 + 4.1 =
  15. 15.9 × (25 − 15) + 64 ÷ 8 =
  16. 16.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  17. 17.What is the smallest number you must take away from 962 so that it divides exactly by 12?
  18. 18.2.06 + 9.4 =
  19. 19.A hostel has enough food for 8 students for 10 days. How many days will the same food last for 4 students?
  20. 20.Two tanks hold 80 litres and 360 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  21. 21.The HCF of two numbers is 8 and their LCM is 96. One of the numbers is 24. What is the other number?
  22. 22.The ratio of boys to girls in a class is 1 : 3. There are 4 boys. How many girls are there?
  23. 23.Two tanks hold 150 litres and 60 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  24. 24.2/3 × 3/9 =
  25. 25.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 10, 12 or 5.
  26. 26.What percent of 400 is 44?
  27. 27.Karan takes 75 seconds and Manav takes 50 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?
  28. 28.What is the smallest number you must take away from 237 so that it divides exactly by 11?
  29. 29.Which is closest to 201 + 696 + 396? (a) 1300 (b) 1500 (c) 1200 (d) 1400
  30. 30.(3 + 11) × 2 − 3 =
  31. 31.Divide ₹414 between Farhan and Aarav in the ratio 1 : 8. How much does Aarav get (in ₹)?
  32. 32.Round 39689 to the nearest thousand.
  33. 33.Find the LCM of 2 and 7.
  34. 34.Which is closest to 302 × 20? (Round each number first.) (a) 12000 (b) 600 (c) 60000 (d) 6000
  35. 35.32 ÷ 4 × 8 + 11 =
  36. 36.1/6 of 36 + 6 × 8 =
  37. 37.What is the smallest number you must add to 389 so that it divides exactly by 4?
  38. 38.If 11 pens cost ₹66, how much do 4 pens cost (in ₹)?
  39. 39.The ratio of boys to girls in a class is 6 : 5. There are 18 boys. How many girls are there?
  40. 40.Round 77.53 to one decimal place. =

Answer key

  1. 27
  2. 16/45
  3. 26
  4. 50
  5. 2
  6. 4
  7. 28
  8. 4
  9. 58000
  10. 50
  11. 87
  12. 25
  13. 40
  14. 12.37
  15. 98
  16. 12
  17. 2
  18. 11.46
  19. 20
  20. 40
  21. 32
  22. 12
  23. 30
  24. 2/9
  25. 62
  26. 11
  27. 150
  28. 6
  29. 1300
  30. 25
  31. 368
  32. 40000
  33. 14
  34. 6000
  35. 75
  36. 54
  37. 3
  38. 24
  39. 15
  40. 77.5

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