← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 458 · 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 4 bottles of juice cost ₹76, how much do 18 bottles of juice cost (in ₹)?
  2. 2.A hall floor is 75 cm long and 50 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  3. 3.Which of these numbers divides exactly by 4? (a) 5131 (b) 7254 (c) 9428 (d) 8051
  4. 4.Which of these numbers divides exactly by 3? (a) 8741 (b) 9458 (c) 3799 (d) 7743
  5. 5.Find the LCM of 14 and 18.
  6. 6.Round 87.18 to one decimal place. =
  7. 7.Find the HCF of 6 and 9.
  8. 8.6/11 × 2/4 =
  9. 9.2/4 − 1/6 =
  10. 10.3/4 + 2/3 =
  11. 11.The ratio of boys to girls in a class is 8 : 1. There are 64 boys. How many girls are there?
  12. 12.If 7 pencil boxes cost ₹126, how much do 15 pencil boxes cost (in ₹)?
  13. 13.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 3, 12 or 8.
  14. 14.Find the third proportional to 3 and 15 (that is, 3 : 15 = 15 : ?).
  15. 15.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 8, 3 or 10.
  16. 16.Find the LCM of 21 and 24.
  17. 17.Find the LCM of 24 and 28.
  18. 18.Divide ₹432 between Aarav and Diya in the ratio 8 : 1. How much does Aarav get (in ₹)?
  19. 19.60% of a number is 198. What is the number?
  20. 20.Which is closest to 204 × 20? (Round each number first.) (a) 8000 (b) 400 (c) 40000 (d) 4000
  21. 21.Kabir takes 48 seconds and Zoya takes 36 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?
  22. 22.Which is closest to 197 × 52? (Round each number first.) (a) 100000 (b) 20000 (c) 1000 (d) 10000
  23. 23.Find the LCM of 12, 9 and 4.
  24. 24.What is the smallest number you must take away from 688 so that it divides exactly by 9?
  25. 25.A car goes 90 km on 5 litres of petrol. How far can it go on 10 litres (in km)?
  26. 26.Find the HCF of 24 and 27.
  27. 27.A hall floor is 135 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  28. 28.The HCF of two numbers is 4 and their LCM is 56. One of the numbers is 28. What is the other number?
  29. 29.Round 10288 to the nearest ten.
  30. 30.Round 44834 to the nearest thousand.
  31. 31.6.05 + 2.2 =
  32. 32.The HCF of two numbers is 2 and their LCM is 36. One of the numbers is 18. What is the other number?
  33. 33.Divide ₹98 between Priya and Vivaan in the ratio 4 : 3. How much does Priya get (in ₹)?
  34. 34.2 × (24 − 3) + 30 ÷ 6 =
  35. 35.If 12 notebooks cost ₹576, how much do 8 notebooks cost (in ₹)?
  36. 36.Find the smallest number bigger than 12 that leaves a remainder of 3 when divided by 4, 9 or 12.
  37. 37.2/7 − 1/5 =
  38. 38.43 + 9 × 4 − 20 =
  39. 39.Which is closest to 591 ÷ 19? (a) 15 (b) 60 (c) 30 (d) 300
  40. 40.6 × (21 − 16) + 8 ÷ 4 =

Answer key

  1. 342
  2. 6
  3. 9428
  4. 7743
  5. 126
  6. 87.2
  7. 3
  8. 3/11
  9. 1/3
  10. 17/12
  11. 8
  12. 270
  13. 26
  14. 75
  15. 122
  16. 168
  17. 168
  18. 384
  19. 330
  20. 4000
  21. 144
  22. 10000
  23. 36
  24. 4
  25. 180
  26. 3
  27. 6
  28. 8
  29. 10290
  30. 45000
  31. 8.25
  32. 4
  33. 56
  34. 47
  35. 384
  36. 39
  37. 3/35
  38. 59
  39. 30
  40. 32

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