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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 705 · 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.Three temple bells ring every 8, 15 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  2. 2.Round 26.79 to one decimal place. =
  3. 3.A hostel has enough food for 10 students for 7 days. How many days will the same food last for 2 students?
  4. 4.A hall floor is 140 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  5. 5.If 11 pencil boxes cost ₹187, how much do 7 pencil boxes cost (in ₹)?
  6. 6.Which is closest to 503 + 305 + 100? (a) 900 (b) 800 (c) 1100 (d) 1000
  7. 7.Round 58867 to the nearest hundred.
  8. 8.Sneha takes 40 seconds and Rahul takes 72 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?
  9. 9.Find the HCF of 105 and 90.
  10. 10.8/12 − 1/6 =
  11. 11.Round 66.57 to one decimal place. =
  12. 12.The HCF of two numbers is 7 and their LCM is 441. One of the numbers is 49. What is the other number?
  13. 13.1/3 × 3/4 =
  14. 14.27 ÷ 9 × 2 + 1 =
  15. 15.Which is closest to 595 + 397 + 395? (a) 1600 (b) 1300 (c) 1500 (d) 1400
  16. 16.Round 34.63 to one decimal place. =
  17. 17.A car goes 34 km on 2 litres of petrol. How far can it go on 12 litres (in km)?
  18. 18.How many factors does 60 have?
  19. 19.What is the smallest number you must take away from 847 so that it divides exactly by 13?
  20. 20.Round 22.27 to one decimal place. =
  21. 21.Three temple bells ring every 24, 5 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.Which of these numbers divides exactly by 3? (a) 2601 (b) 7438 (c) 8885 (d) 7241
  23. 23.6/9 − 1/5 =
  24. 24.82 − 14 ÷ 2 × 7 =
  25. 25.12 + 10 × 11 − 12 =
  26. 26.What is the smallest number you must add to 965 so that it divides exactly by 3?
  27. 27.Find the HCF of 9 and 6.
  28. 28.Which is closest to 608 ÷ 19? (a) 15 (b) 60 (c) 300 (d) 30
  29. 29.Find the LCM of 16 and 28.
  30. 30.How many factors does 56 have?
  31. 31.A car goes 144 km on 12 litres of petrol. How far can it go on 11 litres (in km)?
  32. 32.The HCF of two numbers is 3 and their LCM is 189. One of the numbers is 21. What is the other number?
  33. 33.Find the LCM of 9 and 12.
  34. 34.If 2 bottles of juice cost ₹16, how much do 6 bottles of juice cost (in ₹)?
  35. 35.Which of these numbers divides exactly by 11? (a) 7031 (b) 4740 (c) 8206 (d) 3551
  36. 36.Priya takes 40 seconds and Karan takes 30 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?
  37. 37.A car goes 110 km on 11 litres of petrol. How far can it go on 34 litres (in km)?
  38. 38.Which is closest to 498 × 59? (Round each number first.) (a) 60000 (b) 3000 (c) 300000 (d) 30000
  39. 39.What percent of 250 is 135?
  40. 40.What is 15% of 200?

Answer key

  1. 120
  2. 26.8
  3. 35
  4. 28
  5. 119
  6. 900
  7. 58900
  8. 360
  9. 15
  10. 1/2
  11. 66.6
  12. 63
  13. 1/4
  14. 7
  15. 1400
  16. 34.6
  17. 204
  18. 12
  19. 2
  20. 22.3
  21. 120
  22. 2601
  23. 7/15
  24. 33
  25. 110
  26. 1
  27. 3
  28. 30
  29. 112
  30. 8
  31. 132
  32. 27
  33. 36
  34. 48
  35. 8206
  36. 120
  37. 340
  38. 30000
  39. 54
  40. 30

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