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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 11 · 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 6? (a) 2381 (b) 3405 (c) 7086 (d) 7408
  2. 2.A car goes 112 km on 7 litres of petrol. How far can it go on 36 litres (in km)?
  3. 3.Which is closest to 304 × 50? (Round each number first.) (a) 150000 (b) 1500 (c) 30000 (d) 15000
  4. 4.What is 2/5 of 135 litres?
  5. 5.Farhan scored 36 marks out of 40 in a test. What percentage did Farhan score?
  6. 6.3/5 of 20 + 5 × 8 =
  7. 7.Which of these numbers divides exactly by 11? (a) 8668 (b) 8705 (c) 3129 (d) 5268
  8. 8.4/6 − 4/8 =
  9. 9.Find the LCM of 7, 14 and 11.
  10. 10.Divide ₹238 between Meera and Tara in the ratio 8 : 9. How much does Tara get (in ₹)?
  11. 11.Find the LCM of 7, 5 and 6.
  12. 12.Two tanks hold 50 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  13. 13.12 painters can paint a school in 19 days. How many days would 4 painters take, working at the same speed?
  14. 14.Zoya scored 5 marks out of 20 in a test. What percentage did Zoya score?
  15. 15.4 × (26 − 5) + 24 ÷ 4 =
  16. 16.What percent of 40 is 36?
  17. 17.The ratio of boys to girls in a class is 9 : 7. There are 54 boys. How many girls are there?
  18. 18.Find the LCM of 15, 4 and 9.
  19. 19.Three temple bells ring every 5, 6 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  20. 20.What is 5% of 140?
  21. 21.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 15, 3 or 4.
  22. 22.4.29 + 5.2 =
  23. 23.Find the LCM of 7 and 6.
  24. 24.10 painters can paint a school in 6 days. How many days would 12 painters take, working at the same speed?
  25. 25.Find the LCM of 3 and 8.
  26. 26.If 7 kg of rice costs ₹259, how many kg can you buy for ₹333?
  27. 27.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  28. 28.Which is closest to 994 ÷ 21? (a) 100 (b) 500 (c) 50 (d) 25
  29. 29.If 7 kg of rice costs ₹168, how many kg can you buy for ₹192?
  30. 30.Find the HCF of 91 and 65.
  31. 31.Find the HCF of 52 and 117.
  32. 32.How many factors does 29 have?
  33. 33.A hall floor is 160 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  34. 34.A car goes 46 km on 2 litres of petrol. How far can it go on 27 litres (in km)?
  35. 35.The HCF of two numbers is 3 and their LCM is 30. One of the numbers is 15. What is the other number?
  36. 36.Tara takes 30 seconds and Nisha takes 36 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?
  37. 37.What is the smallest number you must take away from 577 so that it divides exactly by 9?
  38. 38.14 + 4 × 3 − 10 =
  39. 39.(12 + 10) × 4 − 26 =
  40. 40.The ratio of boys to girls in a class is 8 : 1. There are 24 boys. How many girls are there?

Answer key

  1. 7086
  2. 576
  3. 15000
  4. 54
  5. 90
  6. 52
  7. 8668
  8. 1/6
  9. 154
  10. 126
  11. 210
  12. 10
  13. 57
  14. 25
  15. 90
  16. 90
  17. 42
  18. 180
  19. 30
  20. 7
  21. 62
  22. 9.49
  23. 42
  24. 5
  25. 24
  26. 9
  27. 36
  28. 50
  29. 8
  30. 13
  31. 13
  32. 2
  33. 24
  34. 621
  35. 6
  36. 180
  37. 1
  38. 16
  39. 62
  40. 3

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