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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 192 · 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.Which of these numbers divides exactly by 4? (a) 7725 (b) 4596 (c) 9498 (d) 7501
  2. 2.11 : 6 = 77 : ?
  3. 3.If 7 kg of rice costs ₹217, how many kg can you buy for ₹279?
  4. 4.3/5 + 1/2 =
  5. 5.The ratio of boys to girls in a class is 7 : 3. There are 28 boys. How many girls are there?
  6. 6.What percent of 250 is 205?
  7. 7.Find the HCF of 50 and 70.
  8. 8.Three temple bells ring every 15, 4 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.Which is closest to 596 × 80? (Round each number first.) (a) 4800 (b) 48000 (c) 480000 (d) 96000
  10. 10.2/3 of 15 + 7 × 7 =
  11. 11.Round 26.73 to one decimal place. =
  12. 12.Which of these numbers divides exactly by 3? (a) 4382 (b) 7437 (c) 2804 (d) 6391
  13. 13.Meera takes 48 seconds and Rahul 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?
  14. 14.1/3 × 3/6 =
  15. 15.A hall floor is 360 cm long and 135 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  16. 16.30 ÷ 6 × 5 + 10 =
  17. 17.4 painters can paint a school in 6 days. How many days would 2 painters take, working at the same speed?
  18. 18.What is the smallest number you must take away from 635 so that it divides exactly by 8?
  19. 19.60% of a number is 6. What is the number?
  20. 20.Two tanks hold 160 litres and 360 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  21. 21.2.7 × 2 =
  22. 22.What percent of 40 is 2?
  23. 23.Divide ₹391 between Aarav and Arjun in the ratio 9 : 8. How much does Arjun get (in ₹)?
  24. 24.Round 77576 to the nearest ten.
  25. 25.Find the HCF of 126 and 28.
  26. 26.How many factors does 60 have?
  27. 27.Saanvi takes 45 seconds and Aarav takes 40 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.Which is closest to 203 × 31? (Round each number first.) (a) 600 (b) 6000 (c) 60000 (d) 12000
  29. 29.8/12 + 1/2 =
  30. 30.Three temple bells ring every 4, 12 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  31. 31.Find the HCF of 35 and 25.
  32. 32.59 − 9 ÷ 3 × 8 =
  33. 33.The HCF of two numbers is 6 and their LCM is 216. One of the numbers is 24. What is the other number?
  34. 34.If 9 notebooks cost ₹90, how much do 12 notebooks cost (in ₹)?
  35. 35.Find the HCF of 40 and 48.
  36. 36.84 − 18 ÷ 3 × 8 =
  37. 37.What percent of 40 is 26?
  38. 38.Tara scored 28 marks out of 40 in a test. What percentage did Tara score?
  39. 39.Find the LCM of 28 and 36.
  40. 40.10.2 ÷ 2 =

Answer key

  1. 4596
  2. 42
  3. 9
  4. 11/10
  5. 12
  6. 82
  7. 10
  8. 120
  9. 48000
  10. 59
  11. 26.7
  12. 7437
  13. 720
  14. 1/6
  15. 24
  16. 35
  17. 12
  18. 3
  19. 10
  20. 40
  21. 5.4
  22. 5
  23. 184
  24. 77580
  25. 14
  26. 12
  27. 360
  28. 6000
  29. 7/6
  30. 60
  31. 5
  32. 35
  33. 54
  34. 120
  35. 8
  36. 36
  37. 65
  38. 70
  39. 252
  40. 5.1

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