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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 428 · 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.A car goes 160 km on 10 litres of petrol. How far can it go on 2 litres (in km)?
  2. 2.The HCF of two numbers is 5 and their LCM is 360. One of the numbers is 40. What is the other number?
  3. 3.3 painters can paint a school in 10 days. How many days would 6 painters take, working at the same speed?
  4. 4.Round 9911 to the nearest hundred.
  5. 5.12 : 9 = 96 : ?
  6. 6.Which is closest to 1491 ÷ 49? (a) 300 (b) 30 (c) 15 (d) 60
  7. 7.The ratio of boys to girls in a class is 6 : 1. There are 30 boys. How many girls are there?
  8. 8.Divide ₹125 between Aditya and Nisha in the ratio 1 : 4. How much does Aditya get (in ₹)?
  9. 9.Which is closest to 296 × 62? (Round each number first.) (a) 1800 (b) 36000 (c) 180000 (d) 18000
  10. 10.What is 5% of 540?
  11. 11.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?
  12. 12.Which of these numbers divides exactly by 9? (a) 3438 (b) 3433 (c) 3813 (d) 7517
  13. 13.Which is closest to 602 × 28? (Round each number first.) (a) 36000 (b) 1800 (c) 18000 (d) 180000
  14. 14.Round 66534 to the nearest thousand.
  15. 15.Divide ₹507 between Arjun and Rahul in the ratio 6 : 7. How much does Arjun get (in ₹)?
  16. 16.The ratio of boys to girls in a class is 8 : 9. There are 40 boys. How many girls are there?
  17. 17.What is the smallest number you must add to 197 so that it divides exactly by 13?
  18. 18.What is the smallest number you must add to 625 so that it divides exactly by 13?
  19. 19.3/4 + 1/2 =
  20. 20.What is 150% of 454?
  21. 21.42 + 2 × 6 − 1 =
  22. 22.Farhan takes 75 seconds and Manav 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?
  23. 23.Find the LCM of 15 and 25.
  24. 24.What is the smallest number you must take away from 329 so that it divides exactly by 4?
  25. 25.Divide ₹216 between Saanvi and Ananya in the ratio 5 : 1. How much does Ananya get (in ₹)?
  26. 26.Find the LCM of 28 and 8.
  27. 27.6.6 × 7 =
  28. 28.What is 12% of 25?
  29. 29.9.6 × 6 =
  30. 30.What is 25% of 228?
  31. 31.What is the smallest number you must take away from 650 so that it divides exactly by 11?
  32. 32.2 painters can paint a school in 8 days. How many days would 8 painters take, working at the same speed?
  33. 33.Which is closest to 2705 ÷ 31? (a) 90 (b) 900 (c) 180 (d) 45
  34. 34.How many factors does 25 have?
  35. 35.2 × (12 − 1) + 8 ÷ 4 =
  36. 36.5.18 + 5.5 =
  37. 37.What is the smallest number you must take away from 962 so that it divides exactly by 7?
  38. 38.Which is closest to 702 × 68? (Round each number first.) (a) 490000 (b) 49000 (c) 98000 (d) 4900
  39. 39.8.3 × 8 =
  40. 40.A hall floor is 480 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?

Answer key

  1. 32
  2. 45
  3. 5
  4. 9900
  5. 72
  6. 30
  7. 5
  8. 25
  9. 18000
  10. 27
  11. 6
  12. 3438
  13. 18000
  14. 67000
  15. 234
  16. 45
  17. 11
  18. 12
  19. 5/4
  20. 681
  21. 53
  22. 225
  23. 75
  24. 1
  25. 36
  26. 56
  27. 46.2
  28. 3
  29. 57.6
  30. 57
  31. 1
  32. 2
  33. 90
  34. 3
  35. 24
  36. 10.68
  37. 3
  38. 49000
  39. 66.4
  40. 24

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