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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 701 · 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.The ratio of boys to girls in a class is 8 : 7. There are 48 boys. How many girls are there?
  2. 2.A car goes 42 km on 2 litres of petrol. How far can it go on 26 litres (in km)?
  3. 3.14 + 3 × 6 − 4 =
  4. 4.18 ÷ 2 × 8 + 18 =
  5. 5.Meera takes 48 seconds and Kabir 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?
  6. 6.Which is closest to 398 + 296 + 699? (a) 1300 (b) 1400 (c) 1600 (d) 1500
  7. 7.60.3 ÷ 9 =
  8. 8.If 7 kg of rice costs ₹266, how many kg can you buy for ₹418?
  9. 9.Round 77.14 to one decimal place. =
  10. 10.How many factors does 46 have?
  11. 11.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 8, 4 or 5.
  12. 12.15 + 9 × 4 − 4 =
  13. 13.Which is closest to 1801 ÷ 31? (a) 600 (b) 120 (c) 30 (d) 60
  14. 14.7/9 + 11/12 =
  15. 15.A car goes 110 km on 10 litres of petrol. How far can it go on 16 litres (in km)?
  16. 16.What is the smallest number you must take away from 491 so that it divides exactly by 9?
  17. 17.What percent of 20 is 4?
  18. 18.Diya scored 3 marks out of 25 in a test. What percentage did Diya score?
  19. 19.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
  20. 20.6 : 13 = 12 : ?
  21. 21.5 : 9 = 35 : ?
  22. 22.Find the LCM of 12, 3 and 10.
  23. 23.What is the smallest number you must add to 527 so that it divides exactly by 4?
  24. 24.What is 40% of 440?
  25. 25.2/3 of 12 + 9 × 8 =
  26. 26.Three temple bells ring every 15, 12 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.20 + 3 × 3 − 18 =
  28. 28.The HCF of two numbers is 4 and their LCM is 24. One of the numbers is 8. What is the other number?
  29. 29.What is the smallest number you must add to 613 so that it divides exactly by 3?
  30. 30.7/10 × 2/6 =
  31. 31.How many factors does 21 have?
  32. 32.Which is closest to 397 × 32? (Round each number first.) (a) 1200 (b) 24000 (c) 12000 (d) 120000
  33. 33.Which is closest to 397 + 501 + 102? (a) 1100 (b) 1000 (c) 900 (d) 1200
  34. 34.4.9 × 9 =
  35. 35.Two tanks hold 360 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  36. 36.A hall floor is 225 cm long and 135 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  37. 37.Which is closest to 1005 ÷ 49? (a) 40 (b) 10 (c) 200 (d) 20
  38. 38.5 : 6 = 15 : ?
  39. 39.Round 66944 to the nearest ten.
  40. 40.Which of these numbers divides exactly by 4? (a) 7341 (b) 5289 (c) 1691 (d) 2244

Answer key

  1. 42
  2. 546
  3. 28
  4. 90
  5. 720
  6. 1400
  7. 6.7
  8. 11
  9. 77.1
  10. 4
  11. 42
  12. 47
  13. 60
  14. 61/36
  15. 176
  16. 5
  17. 20
  18. 12
  19. 81
  20. 26
  21. 63
  22. 60
  23. 1
  24. 176
  25. 80
  26. 60
  27. 11
  28. 12
  29. 2
  30. 7/30
  31. 4
  32. 12000
  33. 1000
  34. 44.1
  35. 40
  36. 15
  37. 20
  38. 18
  39. 66940
  40. 2244

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