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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 881 · 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.A hostel has enough food for 8 students for 8 days. How many days will the same food last for 2 students?
  2. 2.Which is closest to 498 × 49? (Round each number first.) (a) 2500 (b) 250000 (c) 25000 (d) 50000
  3. 3.How many factors does 98 have?
  4. 4.What is 120% of 330?
  5. 5.The HCF of two numbers is 4 and their LCM is 40. One of the numbers is 8. What is the other number?
  6. 6.Find the HCF of 35 and 10.
  7. 7.If 5 kg of rice costs ₹290, how many kg can you buy for ₹348?
  8. 8.Find the HCF of 84 and 96.
  9. 9.5/12 + 6/8 =
  10. 10.28.8 ÷ 6 =
  11. 11.5/6 − 6/12 =
  12. 12.Which is closest to 1601 ÷ 19? (a) 160 (b) 800 (c) 40 (d) 80
  13. 13.1/5 + 6/10 =
  14. 14.What is the smallest number you must add to 623 so that it divides exactly by 9?
  15. 15.Write 1/2 as a percent.
  16. 16.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  17. 17.3/4 − 5/8 =
  18. 18.The HCF of two numbers is 9 and their LCM is 378. One of the numbers is 63. What is the other number?
  19. 19.If 8 notebooks cost ₹288, how much do 10 notebooks cost (in ₹)?
  20. 20.Which is closest to 2391 ÷ 39? (a) 60 (b) 120 (c) 600 (d) 30
  21. 21.Divide ₹260 between Kavya and Ananya in the ratio 2 : 3. How much does Kavya get (in ₹)?
  22. 22.Which of these numbers divides exactly by 4? (a) 8427 (b) 5483 (c) 9344 (d) 6586
  23. 23.What is the smallest number you must take away from 134 so that it divides exactly by 12?
  24. 24.What is the smallest number you must add to 583 so that it divides exactly by 8?
  25. 25.What percent of 400 is 76?
  26. 26.Find the HCF of 36 and 63.
  27. 27.Find the LCM of 18 and 12.
  28. 28.Two tanks hold 45 litres and 105 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 3, 5 or 10.
  30. 30.A car goes 121 km on 11 litres of petrol. How far can it go on 14 litres (in km)?
  31. 31.The ratio of boys to girls in a class is 1 : 9. There are 2 boys. How many girls are there?
  32. 32.The ratio of boys to girls in a class is 4 : 9. There are 32 boys. How many girls are there?
  33. 33.Which of these numbers divides exactly by 9? (a) 5194 (b) 2215 (c) 2422 (d) 8316
  34. 34.3.4 ÷ 2 =
  35. 35.Find the LCM of 3, 10 and 14.
  36. 36.What is 2/3 of 27 students?
  37. 37.Find the HCF of 30 and 70.
  38. 38.Which is closest to 796 × 50? (Round each number first.) (a) 4000 (b) 40000 (c) 80000 (d) 400000
  39. 39.How many factors does 55 have?
  40. 40.Write 9/25 as a percent.

Answer key

  1. 32
  2. 25000
  3. 6
  4. 396
  5. 20
  6. 5
  7. 6
  8. 12
  9. 7/6
  10. 4.8
  11. 1/3
  12. 80
  13. 4/5
  14. 7
  15. 50
  16. 50
  17. 1/8
  18. 54
  19. 360
  20. 60
  21. 104
  22. 9344
  23. 2
  24. 1
  25. 19
  26. 9
  27. 36
  28. 15
  29. 31
  30. 154
  31. 18
  32. 72
  33. 8316
  34. 1.7
  35. 210
  36. 18
  37. 10
  38. 40000
  39. 4
  40. 36

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