← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 316 · 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.Find the HCF of 4 and 10.
  2. 2.8 × (20 − 4) + 25 ÷ 5 =
  3. 3.The ratio of boys to girls in a class is 9 : 4. There are 81 boys. How many girls are there?
  4. 4.10/12 + 2/4 =
  5. 5.Two tanks hold 225 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  6. 6.Round 15332 to the nearest thousand.
  7. 7.Which is closest to 598 × 72? (Round each number first.) (a) 84000 (b) 420000 (c) 42000 (d) 4200
  8. 8.12 : 11 = 72 : ?
  9. 9.26 + 12 × 10 − 21 =
  10. 10.Which is closest to 201 + 299 + 902? (a) 1400 (b) 1300 (c) 1500 (d) 1600
  11. 11.4/8 − 3/9 =
  12. 12.Find the HCF of 108 and 24.
  13. 13.Karan takes 72 seconds and Diya takes 40 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?
  14. 14.What is 1/2 of ₹12?
  15. 15.Write 3/10 as a percent.
  16. 16.3.23 + 4.7 =
  17. 17.Round 47.64 to one decimal place. =
  18. 18.The HCF of two numbers is 3 and their LCM is 90. One of the numbers is 15. What is the other number?
  19. 19.37 + 4 × 12 − 5 =
  20. 20.9 × (13 − 3) + 6 ÷ 3 =
  21. 21.If 2 kg of rice costs ₹100, how many kg can you buy for ₹650?
  22. 22.Aarav takes 36 seconds and Diya takes 80 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?
  23. 23.A car goes 264 km on 12 litres of petrol. How far can it go on 17 litres (in km)?
  24. 24.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 3, 9 or 15.
  25. 25.Find the LCM of 9, 6 and 8.
  26. 26.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 10, 3 or 4.
  27. 27.7 painters can paint a school in 25 days. How many days would 5 painters take, working at the same speed?
  28. 28.Find the HCF of 65 and 39.
  29. 29.61 − 16 ÷ 4 × 8 =
  30. 30.Round 13966 to the nearest thousand.
  31. 31.Find the HCF of 45 and 81.
  32. 32.A car goes 276 km on 12 litres of petrol. How far can it go on 11 litres (in km)?
  33. 33.4/5 × 1/10 =
  34. 34.Round 20.53 to one decimal place. =
  35. 35.Ishaan scored 10 marks out of 40 in a test. What percentage did Ishaan score?
  36. 36.The HCF of two numbers is 7 and their LCM is 140. One of the numbers is 35. What is the other number?
  37. 37.What is the smallest number you must take away from 440 so that it divides exactly by 13?
  38. 38.Ishaan takes 30 seconds and Kavya takes 45 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?
  39. 39.Two tanks hold 120 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.How many factors does 26 have?

Answer key

  1. 2
  2. 133
  3. 36
  4. 4/3
  5. 25
  6. 15000
  7. 42000
  8. 66
  9. 125
  10. 1400
  11. 1/6
  12. 12
  13. 360
  14. 6
  15. 30
  16. 7.93
  17. 47.6
  18. 18
  19. 80
  20. 92
  21. 13
  22. 720
  23. 374
  24. 46
  25. 72
  26. 61
  27. 35
  28. 13
  29. 29
  30. 14000
  31. 9
  32. 253
  33. 2/25
  34. 20.5
  35. 25
  36. 28
  37. 11
  38. 90
  39. 20
  40. 4

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