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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 274 · 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.(4 + 4) × 7 − 17 =
  2. 2.How many factors does 41 have?
  3. 3.If 7 kg of rice costs ₹140, how many kg can you buy for ₹80?
  4. 4.The ratio of boys to girls in a class is 9 : 2. There are 63 boys. How many girls are there?
  5. 5.Which is closest to 195 + 105 + 297? (a) 600 (b) 700 (c) 500 (d) 800
  6. 6.28 + 10 × 2 − 21 =
  7. 7.Find the HCF of 66 and 77.
  8. 8.5% of a number is 19. What is the number?
  9. 9.Write 1/10 as a percent.
  10. 10.Which is closest to 598 × 31? (Round each number first.) (a) 1800 (b) 36000 (c) 180000 (d) 18000
  11. 11.Which of these numbers divides exactly by 4? (a) 6585 (b) 9468 (c) 2277 (d) 8607
  12. 12.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 10, 4 or 8.
  13. 13.The ratio of boys to girls in a class is 6 : 5. There are 48 boys. How many girls are there?
  14. 14.4.86 + 4.4 =
  15. 15.Find the LCM of 8, 10 and 3.
  16. 16.Find the LCM of 5, 9 and 3.
  17. 17.Which is closest to 403 × 69? (Round each number first.) (a) 28000 (b) 280000 (c) 56000 (d) 2800
  18. 18.3 painters can paint a school in 11 days. How many days would 11 painters take, working at the same speed?
  19. 19.Which is closest to 4507 ÷ 49? (a) 45 (b) 180 (c) 900 (d) 90
  20. 20.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  21. 21.Find the LCM of 28 and 32.
  22. 22.Which is closest to 100 + 201 + 703? (a) 900 (b) 1100 (c) 1200 (d) 1000
  23. 23.Which is closest to 296 + 96 + 396? (a) 700 (b) 900 (c) 1000 (d) 800
  24. 24.1.4 × 2 =
  25. 25.A hostel has enough food for 3 students for 8 days. How many days will the same food last for 6 students?
  26. 26.A car goes 84 km on 7 litres of petrol. How far can it go on 6 litres (in km)?
  27. 27.If 5 kg of rice costs ₹420, how many kg can you buy for ₹1176?
  28. 28.A car goes 54 km on 3 litres of petrol. How far can it go on 39 litres (in km)?
  29. 29.(6 + 5) × 2 − 7 =
  30. 30.Find the LCM of 3, 9 and 14.
  31. 31.Which is closest to 1191 ÷ 19? (a) 600 (b) 120 (c) 60 (d) 30
  32. 32.The ratio of boys to girls in a class is 3 : 8. There are 27 boys. How many girls are there?
  33. 33.Three temple bells ring every 5, 8 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  34. 34.What is the smallest number you must add to 822 so that it divides exactly by 11?
  35. 35.9 − 27 ÷ 9 × 2 =
  36. 36.The ratio of boys to girls in a class is 3 : 1. There are 15 boys. How many girls are there?
  37. 37.9.2 ÷ 2 =
  38. 38.9 × (29 − 6) + 32 ÷ 4 =
  39. 39.Which of these numbers divides exactly by 8? (a) 2176 (b) 4190 (c) 4665 (d) 8889
  40. 40.Find the LCM of 11, 2 and 10.

Answer key

  1. 39
  2. 2
  3. 4
  4. 14
  5. 600
  6. 27
  7. 11
  8. 380
  9. 10
  10. 18000
  11. 9468
  12. 42
  13. 40
  14. 9.26
  15. 120
  16. 45
  17. 28000
  18. 3
  19. 90
  20. 18
  21. 224
  22. 1000
  23. 800
  24. 2.8
  25. 4
  26. 72
  27. 14
  28. 702
  29. 15
  30. 126
  31. 60
  32. 72
  33. 40
  34. 3
  35. 3
  36. 5
  37. 4.6
  38. 215
  39. 2176
  40. 110

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