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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 959 · 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.What percent of 50 is 31?
  2. 2.The HCF of two numbers is 9 and their LCM is 135. One of the numbers is 45. What is the other number?
  3. 3.What is 1/10 of ₹50?
  4. 4.What is the smallest number you must take away from 374 so that it divides exactly by 8?
  5. 5.Which is closest to 803 ÷ 41? (a) 200 (b) 40 (c) 20 (d) 10
  6. 6.2/5 of 15 + 9 × 5 =
  7. 7.Which is closest to 204 + 100 + 404? (a) 700 (b) 900 (c) 800 (d) 600
  8. 8.Divide ₹288 between Saanvi and Dev in the ratio 7 : 9. How much does Dev get (in ₹)?
  9. 9.If 2 kg of rice costs ₹76, how many kg can you buy for ₹456?
  10. 10.3/4 × 1/3 =
  11. 11.The ratio of boys to girls in a class is 5 : 3. There are 10 boys. How many girls are there?
  12. 12.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  13. 13.Find the HCF of 25 and 20.
  14. 14.3 × (24 − 1) + 55 ÷ 5 =
  15. 15.Find the HCF of 75 and 90.
  16. 16.How many factors does 92 have?
  17. 17.Divide ₹403 between Rohan and Isha in the ratio 5 : 8. How much does Isha get (in ₹)?
  18. 18.27 − 14 ÷ 2 × 3 =
  19. 19.Find the LCM of 20 and 12.
  20. 20.Find the HCF of 28 and 20.
  21. 21.Write 1/2 as a percent.
  22. 22.A car goes 72 km on 8 litres of petrol. How far can it go on 30 litres (in km)?
  23. 23.The HCF of two numbers is 9 and their LCM is 189. One of the numbers is 63. What is the other number?
  24. 24.What percent of 200 is 42?
  25. 25.How many factors does 31 have?
  26. 26.31.5 ÷ 9 =
  27. 27.A car goes 60 km on 6 litres of petrol. How far can it go on 10 litres (in km)?
  28. 28.Which is closest to 398 × 29? (Round each number first.) (a) 1200 (b) 12000 (c) 120000 (d) 24000
  29. 29.A hall floor is 150 cm long and 125 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  30. 30.8 : 5 = 40 : ?
  31. 31.12 : 11 = 72 : ?
  32. 32.Round 3696 to the nearest thousand.
  33. 33.Round 51527 to the nearest ten.
  34. 34.What is the smallest number you must add to 311 so that it divides exactly by 13?
  35. 35.Find the LCM of 7, 4 and 14.
  36. 36.Which of these numbers divides exactly by 4? (a) 6035 (b) 9995 (c) 8160 (d) 3714
  37. 37.Which is closest to 903 + 402 + 804? (a) 2200 (b) 2100 (c) 2300 (d) 2000
  38. 38.If 5 pens cost ₹100, how much do 10 pens cost (in ₹)?
  39. 39.1/2 × 1/3 =
  40. 40.Round 45344 to the nearest ten.

Answer key

  1. 62
  2. 27
  3. 5
  4. 6
  5. 20
  6. 51
  7. 700
  8. 162
  9. 12
  10. 1/4
  11. 6
  12. 32
  13. 5
  14. 80
  15. 15
  16. 6
  17. 248
  18. 6
  19. 60
  20. 4
  21. 50
  22. 270
  23. 27
  24. 21
  25. 2
  26. 3.5
  27. 100
  28. 12000
  29. 30
  30. 25
  31. 66
  32. 4000
  33. 51530
  34. 1
  35. 28
  36. 8160
  37. 2100
  38. 200
  39. 1/6
  40. 45340

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