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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 582 · 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.Divide ₹153 between Arjun and Dev in the ratio 7 : 2. How much does Arjun get (in ₹)?
  2. 2.Rahul scored 6 marks out of 20 in a test. What percentage did Rahul score?
  3. 3.Find the LCM of 15 and 9.
  4. 4.150% of a number is 705. What is the number?
  5. 5.(2 + 13) × 4 − 4 =
  6. 6.Ananya takes 45 seconds and Farhan takes 30 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?
  7. 7.What percent of 25 is 16?
  8. 8.90 ÷ 9 × 3 + 29 =
  9. 9.Divide ₹91 between Ananya and Aditya in the ratio 3 : 4. How much does Ananya get (in ₹)?
  10. 10.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
  11. 11.Which is closest to 1502 ÷ 49? (a) 60 (b) 300 (c) 15 (d) 30
  12. 12.Two tanks hold 270 litres and 210 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  13. 13.How many factors does 59 have?
  14. 14.Two tanks hold 160 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  15. 15.Round 73.69 to one decimal place. =
  16. 16.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
  17. 17.1/2 of 8 + 4 × 9 =
  18. 18.Which is closest to 797 × 92? (Round each number first.) (a) 72000 (b) 720000 (c) 7200 (d) 144000
  19. 19.5/11 × 1/2 =
  20. 20.Three temple bells ring every 10, 20 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  21. 21.9 × (15 − 5) + 20 ÷ 4 =
  22. 22.Priya takes 50 seconds and Arjun 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.A hall floor is 200 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  24. 24.Divide ₹200 between Aditya and Nisha in the ratio 2 : 3. How much does Aditya get (in ₹)?
  25. 25.Which is closest to 2706 ÷ 31? (a) 45 (b) 90 (c) 180 (d) 900
  26. 26.Which of these numbers divides exactly by 8? (a) 7254 (b) 8320 (c) 5813 (d) 8770
  27. 27.2.4 × 6 =
  28. 28.Find the HCF of 42 and 28.
  29. 29.What percent of 25 is 14?
  30. 30.A car goes 32 km on 4 litres of petrol. How far can it go on 31 litres (in km)?
  31. 31.What is 2/3 of 42 kg?
  32. 32.What is the smallest number you must take away from 605 so that it divides exactly by 8?
  33. 33.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 6, 8 or 10.
  34. 34.5 : 9 = 40 : ?
  35. 35.Which is closest to 1201 ÷ 19? (a) 120 (b) 600 (c) 60 (d) 30
  36. 36.How many factors does 70 have?
  37. 37.A hall floor is 200 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  38. 38.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  39. 39.2/7 × 8/11 =
  40. 40.How many factors does 12 have?

Answer key

  1. 119
  2. 30
  3. 45
  4. 470
  5. 56
  6. 90
  7. 64
  8. 59
  9. 39
  10. 81
  11. 30
  12. 30
  13. 2
  14. 40
  15. 73.7
  16. 45
  17. 40
  18. 72000
  19. 5/22
  20. 60
  21. 95
  22. 450
  23. 10
  24. 80
  25. 90
  26. 8320
  27. 14.4
  28. 14
  29. 56
  30. 248
  31. 28
  32. 5
  33. 121
  34. 72
  35. 60
  36. 8
  37. 24
  38. 50
  39. 16/77
  40. 6

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