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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 442 · 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. 1.21 + 6 × 2 − 16 =
  2. 2.Which of these numbers divides exactly by 8? (a) 3291 (b) 8568 (c) 3145 (d) 4101
  3. 3.Divide ₹252 between Aditya and Arjun in the ratio 5 : 2. How much does Aditya get (in ₹)?
  4. 4.If 9 kg of rice costs ₹243, how many kg can you buy for ₹135?
  5. 5.30% of a number is 63. What is the number?
  6. 6.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?
  7. 7.Find the LCM of 15, 14 and 6.
  8. 8.The HCF of two numbers is 3 and their LCM is 63. One of the numbers is 9. What is the other number?
  9. 9.22 − 21 ÷ 7 × 6 =
  10. 10.6.39 + 5.2 =
  11. 11.A car goes 32 km on 2 litres of petrol. How far can it go on 15 litres (in km)?
  12. 12.What percent of 80 is 72?
  13. 13.Which is closest to 299 × 18? (Round each number first.) (a) 12000 (b) 6000 (c) 600 (d) 60000
  14. 14.1/2 × 1/3 =
  15. 15.6/7 − 5/10 =
  16. 16.8 painters can paint a school in 13 days. How many days would 13 painters take, working at the same speed?
  17. 17.5 × (30 − 2) + 35 ÷ 5 =
  18. 18.The HCF of two numbers is 7 and their LCM is 210. One of the numbers is 42. What is the other number?
  19. 19.10 ÷ 2 × 6 + 10 =
  20. 20.What percent of 20 is 19?
  21. 21.Which of these numbers divides exactly by 6? (a) 1127 (b) 6000 (c) 6584 (d) 9860
  22. 22.How many factors does 59 have?
  23. 23.35.2 ÷ 4 =
  24. 24.Find the LCM of 8, 6 and 2.
  25. 25.A hall floor is 480 cm long and 300 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  26. 26.What is 7/10 of 60 kg?
  27. 27.53 − 16 ÷ 2 × 3 =
  28. 28.25% of a number is 74. What is the number?
  29. 29.The HCF of two numbers is 9 and their LCM is 126. One of the numbers is 18. What is the other number?
  30. 30.Which of these numbers divides exactly by 6? (a) 3209 (b) 5347 (c) 7912 (d) 1128
  31. 31.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 10, 5 or 12.
  32. 32.What is 2/9 of ₹108?
  33. 33.11 : 6 = 22 : ?
  34. 34.Round 75.49 to one decimal place. =
  35. 35.Find the LCM of 8, 2 and 11.
  36. 36.A hall floor is 240 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  37. 37.(17 + 16) × 7 − 24 =
  38. 38.How many factors does 88 have?
  39. 39.11 painters can paint a school in 6 days. How many days would 22 painters take, working at the same speed?
  40. 40.The ratio of boys to girls in a class is 5 : 4. There are 15 boys. How many girls are there?

Answer key

  1. 17
  2. 8568
  3. 180
  4. 5
  5. 210
  6. 12
  7. 210
  8. 21
  9. 4
  10. 11.59
  11. 240
  12. 90
  13. 6000
  14. 1/6
  15. 5/14
  16. 8
  17. 147
  18. 35
  19. 40
  20. 95
  21. 6000
  22. 2
  23. 8.8
  24. 24
  25. 40
  26. 42
  27. 29
  28. 296
  29. 63
  30. 1128
  31. 61
  32. 24
  33. 12
  34. 75.5
  35. 88
  36. 12
  37. 207
  38. 8
  39. 3
  40. 12

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