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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 241 · 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. 1.54 ÷ 9 × 3 + 6 =
  2. 2.2 : 11 = 6 : ?
  3. 3.5/10 × 1/3 =
  4. 4.41 + 11 × 12 − 18 =
  5. 5.Find the LCM of 9 and 2.
  6. 6.Round 41.23 to one decimal place. =
  7. 7.10 : 9 = 20 : ?
  8. 8.Find the HCF of 14 and 21.
  9. 9.A hall floor is 350 cm long and 300 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  10. 10.What is 75% of 464?
  11. 11.60% of a number is 273. What is the number?
  12. 12.(14 + 16) × 5 − 19 =
  13. 13.Write 1/2 as a percent.
  14. 14.How many factors does 90 have?
  15. 15.5% of a number is 10. What is the number?
  16. 16.Which is closest to 596 + 197 + 805? (a) 1600 (b) 1800 (c) 1500 (d) 1700
  17. 17.Three temple bells ring every 15, 24 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  18. 18.What is the smallest number you must add to 488 so that it divides exactly by 6?
  19. 19.What percent of 250 is 115?
  20. 20.Which is closest to 296 × 71? (Round each number first.) (a) 42000 (b) 210000 (c) 21000 (d) 2100
  21. 21.Divide ₹105 between Tara and Rahul in the ratio 6 : 1. How much does Rahul get (in ₹)?
  22. 22.6 painters can paint a school in 17 days. How many days would 17 painters take, working at the same speed?
  23. 23.Which of these numbers divides exactly by 6? (a) 1129 (b) 3569 (c) 4803 (d) 8862
  24. 24.Find the HCF of 28 and 24.
  25. 25.A hall floor is 160 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  26. 26.A car goes 90 km on 5 litres of petrol. How far can it go on 20 litres (in km)?
  27. 27.Find the HCF of 117 and 104.
  28. 28.8/9 − 1/3 =
  29. 29.Which is closest to 402 × 71? (Round each number first.) (a) 56000 (b) 28000 (c) 280000 (d) 2800
  30. 30.A car goes 95 km on 5 litres of petrol. How far can it go on 29 litres (in km)?
  31. 31.42 ÷ 7 × 3 + 4 =
  32. 32.Find the LCM of 7, 11 and 14.
  33. 33.If 3 kg of rice costs ₹189, how many kg can you buy for ₹567?
  34. 34.150% of a number is 483. What is the number?
  35. 35.Round 59.46 to one decimal place. =
  36. 36.1.31 + 1.2 =
  37. 37.A car goes 216 km on 12 litres of petrol. How far can it go on 26 litres (in km)?
  38. 38.Find the LCM of 6 and 14.
  39. 39.If 9 kg of rice costs ₹810, how many kg can you buy for ₹990?
  40. 40.What is the smallest number you must add to 537 so that it divides exactly by 7?

Answer key

  1. 24
  2. 33
  3. 1/6
  4. 155
  5. 18
  6. 41.2
  7. 18
  8. 7
  9. 42
  10. 348
  11. 455
  12. 131
  13. 50
  14. 12
  15. 200
  16. 1600
  17. 120
  18. 4
  19. 46
  20. 21000
  21. 15
  22. 6
  23. 8862
  24. 4
  25. 12
  26. 360
  27. 13
  28. 5/9
  29. 28000
  30. 551
  31. 22
  32. 154
  33. 9
  34. 322
  35. 59.5
  36. 2.51
  37. 468
  38. 42
  39. 11
  40. 2

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