← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 884 · 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.Round 9733 to the nearest thousand.
  2. 2.If 7 erasers cost ₹413, how much do 6 erasers cost (in ₹)?
  3. 3.Three temple bells ring every 18, 9 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.What is the smallest number you must take away from 249 so that it divides exactly by 4?
  5. 5.Which of these numbers divides exactly by 3? (a) 2034 (b) 3116 (c) 2869 (d) 6674
  6. 6.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  7. 7.What is 40% of 345?
  8. 8.How many factors does 36 have?
  9. 9.If 4 pens cost ₹208, how much do 6 pens cost (in ₹)?
  10. 10.Find the HCF of 81 and 18.
  11. 11.Which is closest to 697 + 204 + 302? (a) 1100 (b) 1400 (c) 1200 (d) 1300
  12. 12.Which is closest to 399 ÷ 21? (a) 40 (b) 20 (c) 10 (d) 200
  13. 13.The ratio of boys to girls in a class is 5 : 6. There are 35 boys. How many girls are there?
  14. 14.Ishaan takes 36 seconds and Aarav takes 90 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?
  15. 15.What is the smallest number you must take away from 238 so that it divides exactly by 4?
  16. 16.Which of these numbers divides exactly by 8? (a) 9963 (b) 5167 (c) 1072 (d) 3078
  17. 17.60 − 15 ÷ 3 × 8 =
  18. 18.Two tanks hold 40 litres and 50 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  19. 19.1/4 − 1/5 =
  20. 20.Write 8/25 as a percent.
  21. 21.9 × (13 − 3) + 12 ÷ 6 =
  22. 22.44 ÷ 4 × 6 + 4 =
  23. 23.If 9 erasers cost ₹162, how much do 20 erasers cost (in ₹)?
  24. 24.A hall floor is 360 cm long and 300 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  25. 25.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?
  26. 26.Three temple bells ring every 9, 10 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.A hostel has enough food for 5 students for 13 days. How many days will the same food last for 13 students?
  28. 28.3/4 − 2/3 =
  29. 29.Find the HCF of 24 and 16.
  30. 30.3 painters can paint a school in 21 days. How many days would 9 painters take, working at the same speed?
  31. 31.The ratio of boys to girls in a class is 5 : 3. There are 25 boys. How many girls are there?
  32. 32.If 3 pencil boxes cost ₹9, how much do 15 pencil boxes cost (in ₹)?
  33. 33.If 8 kg of rice costs ₹168, how many kg can you buy for ₹315?
  34. 34.The HCF of two numbers is 3 and their LCM is 36. One of the numbers is 12. What is the other number?
  35. 35.Two tanks hold 125 litres and 200 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  36. 36.What percent of 20 is 12?
  37. 37.(17 + 20) × 6 − 5 =
  38. 38.27 − 16 ÷ 4 × 5 =
  39. 39.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 9, 4 or 10.
  40. 40.60% of a number is 270. What is the number?

Answer key

  1. 10000
  2. 354
  3. 72
  4. 1
  5. 2034
  6. 18
  7. 138
  8. 9
  9. 312
  10. 9
  11. 1200
  12. 20
  13. 42
  14. 180
  15. 2
  16. 1072
  17. 20
  18. 10
  19. 1/20
  20. 32
  21. 92
  22. 70
  23. 360
  24. 30
  25. 6
  26. 90
  27. 5
  28. 1/12
  29. 8
  30. 7
  31. 15
  32. 45
  33. 15
  34. 9
  35. 25
  36. 60
  37. 217
  38. 7
  39. 182
  40. 450

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