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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 265 · 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. 1.24 + 11 × 2 − 8 =
  2. 2.Round 12.29 to one decimal place. =
  3. 3.5/10 × 1/3 =
  4. 4.Three temple bells ring every 30, 20 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.2 : 3 = 8 : ?
  6. 6.How many factors does 79 have?
  7. 7.Divide ₹649 between Diya and Pooja in the ratio 3 : 8. How much does Diya get (in ₹)?
  8. 8.Arjun scored 15 marks out of 25 in a test. What percentage did Arjun score?
  9. 9.The ratio of boys to girls in a class is 9 : 1. There are 90 boys. How many girls are there?
  10. 10.25% of a number is 25. What is the number?
  11. 11.8 × (30 − 7) + 27 ÷ 9 =
  12. 12.Which of these numbers divides exactly by 11? (a) 2137 (b) 1013 (c) 1386 (d) 3140
  13. 13.Which is closest to 4500 ÷ 51? (a) 90 (b) 900 (c) 180 (d) 45
  14. 14.Three temple bells ring every 18, 9 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.6.24 + 8.5 =
  16. 16.3.73 + 6.4 =
  17. 17.Two tanks hold 225 litres and 125 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  18. 18.What percent of 200 is 186?
  19. 19.Find the HCF of 42 and 35.
  20. 20.Aarav scored 18 marks out of 40 in a test. What percentage did Aarav score?
  21. 21.Three temple bells ring every 24, 6 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.5 × (19 − 4) + 36 ÷ 6 =
  23. 23.1/7 of 49 + 4 × 8 =
  24. 24.What is 5% of 420?
  25. 25.Find the LCM of 24 and 42.
  26. 26.If 6 kg of rice costs ₹144, how many kg can you buy for ₹288?
  27. 27.How many factors does 94 have?
  28. 28.If 5 pens cost ₹195, how much do 13 pens cost (in ₹)?
  29. 29.Round 41752 to the nearest ten.
  30. 30.2/3 + 2/4 =
  31. 31.1/3 − 2/8 =
  32. 32.Which is closest to 302 × 70? (Round each number first.) (a) 2100 (b) 42000 (c) 21000 (d) 210000
  33. 33.Three temple bells ring every 15, 20 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  34. 34.A car goes 242 km on 11 litres of petrol. How far can it go on 25 litres (in km)?
  35. 35.If 11 pencil boxes cost ₹451, how much do 14 pencil boxes cost (in ₹)?
  36. 36.1/2 of 14 + 3 × 8 =
  37. 37.8 painters can paint a school in 27 days. How many days would 4 painters take, working at the same speed?
  38. 38.Which of these numbers divides exactly by 8? (a) 3591 (b) 8370 (c) 5144 (d) 1093
  39. 39.What percent of 400 is 120?
  40. 40.A hall floor is 350 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?

Answer key

  1. 38
  2. 12.3
  3. 1/6
  4. 60
  5. 12
  6. 2
  7. 177
  8. 60
  9. 10
  10. 100
  11. 187
  12. 1386
  13. 90
  14. 36
  15. 14.74
  16. 10.13
  17. 25
  18. 93
  19. 7
  20. 45
  21. 120
  22. 81
  23. 39
  24. 21
  25. 168
  26. 12
  27. 4
  28. 507
  29. 41750
  30. 7/6
  31. 1/12
  32. 21000
  33. 120
  34. 550
  35. 574
  36. 31
  37. 54
  38. 5144
  39. 30
  40. 21

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