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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 929 · 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 is closest to 398 + 397 + 795? (a) 1700 (b) 1600 (c) 1500 (d) 1800
  2. 2.What is 1/3 of 33 kg?
  3. 3.Which is closest to 903 + 195 + 402? (a) 1600 (b) 1400 (c) 1700 (d) 1500
  4. 4.If 6 erasers cost ₹270, how much do 7 erasers cost (in ₹)?
  5. 5.Which of these numbers divides exactly by 11? (a) 3453 (b) 6360 (c) 8239 (d) 6455
  6. 6.3/5 of 60 + 3 × 4 =
  7. 7.7.8 × 2 =
  8. 8.The ratio of boys to girls in a class is 1 : 2. There are 2 boys. How many girls are there?
  9. 9.The HCF of two numbers is 7 and their LCM is 280. One of the numbers is 35. What is the other number?
  10. 10.2.3 × 6 =
  11. 11.Find the LCM of 14 and 6.
  12. 12.Find the LCM of 7, 6 and 10.
  13. 13.Two tanks hold 320 litres and 120 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  14. 14.5 × (11 − 8) + 18 ÷ 2 =
  15. 15.1/7 of 63 + 6 × 2 =
  16. 16.2.62 + 6.8 =
  17. 17.Which of these numbers divides exactly by 6? (a) 5379 (b) 4722 (c) 2917 (d) 9353
  18. 18.What percent of 20 is 4?
  19. 19.Which is closest to 398 ÷ 21? (a) 20 (b) 200 (c) 10 (d) 40
  20. 20.Which is closest to 404 ÷ 19? (a) 20 (b) 200 (c) 10 (d) 40
  21. 21.Find the LCM of 2, 5 and 11.
  22. 22.The ratio of boys to girls in a class is 9 : 8. There are 27 boys. How many girls are there?
  23. 23.If 12 pens cost ₹636, how much do 20 pens cost (in ₹)?
  24. 24.A car goes 39 km on 3 litres of petrol. How far can it go on 38 litres (in km)?
  25. 25.(17 + 19) × 3 − 15 =
  26. 26.If 8 notebooks cost ₹24, how much do 12 notebooks cost (in ₹)?
  27. 27.1/2 of 16 + 6 × 8 =
  28. 28.4/8 − 1/4 =
  29. 29.Two tanks hold 40 litres and 70 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  30. 30.3.6 × 3 =
  31. 31.A car goes 26 km on 2 litres of petrol. How far can it go on 9 litres (in km)?
  32. 32.Find the LCM of 42 and 12.
  33. 33.Write 13/25 as a percent.
  34. 34.A car goes 24 km on 2 litres of petrol. How far can it go on 12 litres (in km)?
  35. 35.Which of these numbers divides exactly by 3? (a) 5186 (b) 3691 (c) 2236 (d) 9885
  36. 36.A car goes 63 km on 7 litres of petrol. How far can it go on 23 litres (in km)?
  37. 37.Which is closest to 498 × 21? (Round each number first.) (a) 100000 (b) 20000 (c) 10000 (d) 1000
  38. 38.The ratio of boys to girls in a class is 8 : 3. There are 64 boys. How many girls are there?
  39. 39.A hostel has enough food for 4 students for 25 days. How many days will the same food last for 5 students?
  40. 40.Find the LCM of 9 and 6.

Answer key

  1. 1600
  2. 11
  3. 1500
  4. 315
  5. 8239
  6. 48
  7. 15.6
  8. 4
  9. 56
  10. 13.8
  11. 42
  12. 210
  13. 40
  14. 24
  15. 21
  16. 9.42
  17. 4722
  18. 20
  19. 20
  20. 20
  21. 110
  22. 24
  23. 1060
  24. 494
  25. 93
  26. 36
  27. 56
  28. 1/4
  29. 10
  30. 10.8
  31. 117
  32. 84
  33. 52
  34. 144
  35. 9885
  36. 207
  37. 10000
  38. 24
  39. 20
  40. 18

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