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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 173 · 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 120 km on 8 litres of petrol. How far can it go on 38 litres (in km)?
  2. 2.If 2 kg of rice costs ₹64, how many kg can you buy for ₹192?
  3. 3.Divide ₹799 between Manav and Ananya in the ratio 9 : 8. How much does Manav get (in ₹)?
  4. 4.Find the LCM of 10 and 45.
  5. 5.7.7 × 9 =
  6. 6.1/8 of 48 + 9 × 3 =
  7. 7.What is the smallest number you must add to 855 so that it divides exactly by 7?
  8. 8.Which is closest to 2106 ÷ 29? (a) 35 (b) 700 (c) 140 (d) 70
  9. 9.Which is closest to 608 ÷ 19? (a) 300 (b) 15 (c) 30 (d) 60
  10. 10.A hall floor is 200 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  11. 11.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 3, 8 or 5.
  12. 12.7/12 × 3/4 =
  13. 13.If 3 kg of rice costs ₹147, how many kg can you buy for ₹588?
  14. 14.4/5 − 4/9 =
  15. 15.7 : 10 = 21 : ?
  16. 16.Which of these numbers divides exactly by 11? (a) 6941 (b) 6910 (c) 3604 (d) 1678
  17. 17.(18 + 10) × 4 − 7 =
  18. 18.Which is closest to 599 × 60? (Round each number first.) (a) 36000 (b) 72000 (c) 360000 (d) 3600
  19. 19.Round 11.83 to one decimal place. =
  20. 20.What is the smallest number you must take away from 386 so that it divides exactly by 4?
  21. 21.Three temple bells ring every 18, 15 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.2 × (14 − 5) + 18 ÷ 3 =
  23. 23.Find the LCM of 7, 6 and 4.
  24. 24.66 ÷ 6 × 6 + 30 =
  25. 25.What is the smallest number you must add to 853 so that it divides exactly by 8?
  26. 26.What is the smallest number you must take away from 166 so that it divides exactly by 13?
  27. 27.Round 81.31 to one decimal place. =
  28. 28.The HCF of two numbers is 7 and their LCM is 70. One of the numbers is 14. What is the other number?
  29. 29.Three temple bells ring every 8, 6 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  30. 30.The HCF of two numbers is 2 and their LCM is 12. One of the numbers is 6. What is the other number?
  31. 31.What is the smallest number you must add to 393 so that it divides exactly by 12?
  32. 32.80 − 72 ÷ 8 × 5 =
  33. 33.A hostel has enough food for 6 students for 11 days. How many days will the same food last for 11 students?
  34. 34.The HCF of two numbers is 8 and their LCM is 120. One of the numbers is 24. What is the other number?
  35. 35.60% of a number is 234. What is the number?
  36. 36.5.41 + 2.6 =
  37. 37.Which of these numbers divides exactly by 9? (a) 8838 (b) 5807 (c) 5388 (d) 1479
  38. 38.6.39 + 7.1 =
  39. 39.3 painters can paint a school in 12 days. How many days would 12 painters take, working at the same speed?
  40. 40.Round 79.54 to one decimal place. =

Answer key

  1. 570
  2. 6
  3. 423
  4. 90
  5. 69.3
  6. 33
  7. 6
  8. 70
  9. 30
  10. 15
  11. 122
  12. 7/16
  13. 12
  14. 16/45
  15. 30
  16. 6941
  17. 105
  18. 36000
  19. 11.8
  20. 2
  21. 90
  22. 24
  23. 84
  24. 96
  25. 3
  26. 10
  27. 81.3
  28. 35
  29. 120
  30. 4
  31. 3
  32. 35
  33. 6
  34. 40
  35. 390
  36. 8.01
  37. 8838
  38. 13.49
  39. 3
  40. 79.5

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