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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 896 · 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.What is 2/7 of 189 kg?
  2. 2.5 × (12 − 2) + 24 ÷ 2 =
  3. 3.Divide ₹384 between Tara and Isha in the ratio 5 : 7. How much does Tara get (in ₹)?
  4. 4.Which is closest to 202 × 40? (Round each number first.) (a) 800 (b) 16000 (c) 8000 (d) 80000
  5. 5.How many factors does 95 have?
  6. 6.The ratio of boys to girls in a class is 5 : 9. There are 20 boys. How many girls are there?
  7. 7.4 : 9 = 24 : ?
  8. 8.Priya takes 50 seconds and Meera takes 60 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. 9.12 : 10 = 24 : ?
  10. 10.What is 1/2 of 20 km?
  11. 11.Which is closest to 899 + 101 + 202? (a) 1200 (b) 1400 (c) 1300 (d) 1100
  12. 12.What is 40% of 40?
  13. 13.What is the smallest number you must take away from 573 so that it divides exactly by 12?
  14. 14.The ratio of boys to girls in a class is 8 : 3. There are 16 boys. How many girls are there?
  15. 15.Round 71.31 to one decimal place. =
  16. 16.84 − 30 ÷ 5 × 9 =
  17. 17.A hall floor is 350 cm long and 300 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  18. 18.The HCF of two numbers is 5 and their LCM is 225. One of the numbers is 45. What is the other number?
  19. 19.83 − 56 ÷ 7 × 8 =
  20. 20.Three temple bells ring every 12, 4 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  21. 21.Find the LCM of 11, 2 and 3.
  22. 22.(16 + 2) × 5 − 20 =
  23. 23.3/4 of 48 + 3 × 5 =
  24. 24.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 10, 6 or 15.
  25. 25.Find the HCF of 25 and 30.
  26. 26.1/3 of 12 + 8 × 5 =
  27. 27.Which is closest to 901 + 204 + 201? (a) 1300 (b) 1400 (c) 1200 (d) 1500
  28. 28.Which is closest to 396 × 22? (Round each number first.) (a) 80000 (b) 8000 (c) 800 (d) 16000
  29. 29.A hall floor is 125 cm long and 50 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  30. 30.The HCF of two numbers is 6 and their LCM is 252. One of the numbers is 36. What is the other number?
  31. 31.Find the LCM of 20 and 25.
  32. 32.A hostel has enough food for 10 students for 15 days. How many days will the same food last for 3 students?
  33. 33.Find the LCM of 8, 3 and 14.
  34. 34.9 painters can paint a school in 9 days. How many days would 3 painters take, working at the same speed?
  35. 35.7.86 + 9.8 =
  36. 36.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?
  37. 37.Find the LCM of 12, 2 and 11.
  38. 38.A car goes 154 km on 7 litres of petrol. How far can it go on 2 litres (in km)?
  39. 39.Three temple bells ring every 12, 20 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.If 9 kg of rice costs ₹387, how many kg can you buy for ₹473?

Answer key

  1. 54
  2. 62
  3. 160
  4. 8000
  5. 4
  6. 36
  7. 54
  8. 300
  9. 20
  10. 10
  11. 1200
  12. 16
  13. 9
  14. 6
  15. 71.3
  16. 30
  17. 42
  18. 25
  19. 19
  20. 60
  21. 66
  22. 70
  23. 51
  24. 31
  25. 5
  26. 44
  27. 1300
  28. 8000
  29. 10
  30. 42
  31. 100
  32. 50
  33. 168
  34. 27
  35. 17.66
  36. 6
  37. 132
  38. 44
  39. 60
  40. 11

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