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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 548 · 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.Find the LCM of 5, 6 and 14.
  2. 2.1/5 of 50 + 6 × 3 =
  3. 3.What is the smallest number you must add to 799 so that it divides exactly by 8?
  4. 4.What percent of 400 is 116?
  5. 5.51.6 ÷ 6 =
  6. 6.What is 20% of 370?
  7. 7.Round 32.81 to one decimal place. =
  8. 8.What is 2/3 of 54 litres?
  9. 9.Aditya takes 72 seconds and Aarav 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?
  10. 10.The ratio of boys to girls in a class is 1 : 3. There are 4 boys. How many girls are there?
  11. 11.Which of these numbers divides exactly by 6? (a) 8503 (b) 1851 (c) 1326 (d) 8012
  12. 12.What is 40% of 135?
  13. 13.If 3 kg of rice costs ₹195, how many kg can you buy for ₹520?
  14. 14.7.46 + 5.4 =
  15. 15.Which of these numbers divides exactly by 8? (a) 3315 (b) 9533 (c) 3863 (d) 9264
  16. 16.What is the smallest number you must add to 405 so that it divides exactly by 7?
  17. 17.Divide ₹162 between Kabir and Dev in the ratio 5 : 1. How much does Dev get (in ₹)?
  18. 18.21 + 7 × 5 − 20 =
  19. 19.27 ÷ 3 × 6 + 19 =
  20. 20.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  21. 21.What is the smallest number you must add to 421 so that it divides exactly by 12?
  22. 22.Round 15.12 to one decimal place. =
  23. 23.If 8 kg of rice costs ₹176, how many kg can you buy for ₹330?
  24. 24.35 + 6 × 3 − 9 =
  25. 25.Which of these numbers divides exactly by 11? (a) 4318 (b) 9410 (c) 3126 (d) 3718
  26. 26.6 × (22 − 21) + 24 ÷ 3 =
  27. 27.4/5 − 2/4 =
  28. 28.A hall floor is 90 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  29. 29.Find the LCM of 10, 12 and 8.
  30. 30.The ratio of boys to girls in a class is 9 : 5. There are 90 boys. How many girls are there?
  31. 31.If 9 pencil boxes cost ₹162, how much do 20 pencil boxes cost (in ₹)?
  32. 32.1/3 of 36 + 2 × 7 =
  33. 33.The ratio of boys to girls in a class is 7 : 2. There are 21 boys. How many girls are there?
  34. 34.A hall floor is 315 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  35. 35.74 − 63 ÷ 7 × 6 =
  36. 36.Find the HCF of 65 and 39.
  37. 37.Divide ₹110 between Pooja and Rahul in the ratio 1 : 4. How much does Pooja get (in ₹)?
  38. 38.Three temple bells ring every 6, 24 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  39. 39.3 : 8 = 15 : ?
  40. 40.Which is closest to 899 × 81? (Round each number first.) (a) 720000 (b) 72000 (c) 144000 (d) 7200

Answer key

  1. 210
  2. 28
  3. 1
  4. 29
  5. 8.6
  6. 74
  7. 32.8
  8. 36
  9. 360
  10. 12
  11. 1326
  12. 54
  13. 8
  14. 12.86
  15. 9264
  16. 1
  17. 27
  18. 36
  19. 73
  20. 20
  21. 11
  22. 15.1
  23. 15
  24. 44
  25. 3718
  26. 14
  27. 3/10
  28. 6
  29. 120
  30. 50
  31. 360
  32. 26
  33. 6
  34. 28
  35. 20
  36. 13
  37. 22
  38. 120
  39. 40
  40. 72000

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