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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 562 · 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. 1.7/8 + 5/9 =
  2. 2.If 9 kg of rice costs ₹351, how many kg can you buy for ₹195?
  3. 3.81 − 49 ÷ 7 × 8 =
  4. 4.(18 + 20) × 5 − 5 =
  5. 5.Find the LCM of 3, 7 and 14.
  6. 6.2/3 of 6 + 2 × 8 =
  7. 7.Find the LCM of 40 and 35.
  8. 8.Find the LCM of 7, 2 and 11.
  9. 9.What is the smallest number you must take away from 251 so that it divides exactly by 7?
  10. 10.Which is closest to 1494 ÷ 31? (a) 25 (b) 50 (c) 100 (d) 500
  11. 11.How many factors does 63 have?
  12. 12.Which is closest to 698 × 51? (Round each number first.) (a) 70000 (b) 350000 (c) 35000 (d) 3500
  13. 13.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 3, 15 or 9.
  14. 14.Find the HCF of 20 and 15.
  15. 15.The ratio of boys to girls in a class is 8 : 9. There are 72 boys. How many girls are there?
  16. 16.Find the HCF of 32 and 24.
  17. 17.Divide ₹450 between Ishaan and Pooja in the ratio 8 : 1. How much does Pooja get (in ₹)?
  18. 18.2 × (26 − 23) + 55 ÷ 5 =
  19. 19.A hall floor is 300 cm long and 240 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  20. 20.Find the LCM of 3, 5 and 8.
  21. 21.Three temple bells ring every 20, 10 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.Round 68668 to the nearest ten.
  23. 23.Find the third proportional to 8 and 32 (that is, 8 : 32 = 32 : ?).
  24. 24.The HCF of two numbers is 7 and their LCM is 168. One of the numbers is 21. What is the other number?
  25. 25.A hostel has enough food for 10 students for 19 days. How many days will the same food last for 5 students?
  26. 26.Find the LCM of 2, 5 and 4.
  27. 27.Farhan takes 50 seconds and Ananya 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?
  28. 28.How many factors does 52 have?
  29. 29.What is 1/4 of 76 km?
  30. 30.A car goes 84 km on 6 litres of petrol. How far can it go on 33 litres (in km)?
  31. 31.Which of these numbers divides exactly by 6? (a) 7080 (b) 2114 (c) 2847 (d) 5552
  32. 32.What is 2/7 of 210 km?
  33. 33.14 ÷ 2 × 2 + 27 =
  34. 34.What is 2/5 of 55 students?
  35. 35.A hostel has enough food for 4 students for 5 days. How many days will the same food last for 2 students?
  36. 36.20% of a number is 62. What is the number?
  37. 37.64 − 25 ÷ 5 × 7 =
  38. 38.54 ÷ 6 × 9 + 9 =
  39. 39.Find the smallest number bigger than 15 that leaves a remainder of 4 when divided by 15, 9 or 5.
  40. 40.Which is closest to 603 + 603 + 395? (a) 1700 (b) 1500 (c) 1800 (d) 1600

Answer key

  1. 103/72
  2. 5
  3. 25
  4. 185
  5. 42
  6. 20
  7. 280
  8. 154
  9. 6
  10. 50
  11. 6
  12. 35000
  13. 47
  14. 5
  15. 81
  16. 8
  17. 50
  18. 17
  19. 20
  20. 120
  21. 40
  22. 68670
  23. 128
  24. 56
  25. 38
  26. 20
  27. 300
  28. 6
  29. 19
  30. 462
  31. 7080
  32. 60
  33. 41
  34. 22
  35. 10
  36. 310
  37. 29
  38. 90
  39. 49
  40. 1600

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