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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 796 · 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.Find the LCM of 5, 11 and 3.
  2. 2.What percent of 250 is 65?
  3. 3.If 11 pens cost ₹352, how much do 3 pens cost (in ₹)?
  4. 4.Round 40586 to the nearest thousand.
  5. 5.The ratio of boys to girls in a class is 3 : 1. There are 21 boys. How many girls are there?
  6. 6.Saanvi scored 16 marks out of 20 in a test. What percentage did Saanvi score?
  7. 7.7/9 − 2/4 =
  8. 8.Divide ₹462 between Saanvi and Diya in the ratio 9 : 2. How much does Saanvi get (in ₹)?
  9. 9.Which of these numbers divides exactly by 11? (a) 4395 (b) 7774 (c) 9342 (d) 5577
  10. 10.Find the LCM of 14, 2 and 15.
  11. 11.7/9 of 108 + 8 × 6 =
  12. 12.Round 48.34 to one decimal place. =
  13. 13.Divide ₹528 between Rahul and Farhan in the ratio 9 : 2. How much does Rahul get (in ₹)?
  14. 14.Meera takes 48 seconds and Rohan takes 30 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  15. 15.2/7 × 4/5 =
  16. 16.(7 + 18) × 4 − 6 =
  17. 17.Two tanks hold 20 litres and 30 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  18. 18.A car goes 20 km on 2 litres of petrol. How far can it go on 3 litres (in km)?
  19. 19.Round 18233 to the nearest ten.
  20. 20.How many factors does 81 have?
  21. 21.A hall floor is 140 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  22. 22.What is the smallest number you must take away from 551 so that it divides exactly by 3?
  23. 23.What is the smallest number you must add to 905 so that it divides exactly by 8?
  24. 24.What percent of 250 is 30?
  25. 25.Which is closest to 897 + 205 + 196? (a) 1400 (b) 1200 (c) 1300 (d) 1500
  26. 26.Round 54.33 to one decimal place. =
  27. 27.The HCF of two numbers is 5 and their LCM is 140. One of the numbers is 35. What is the other number?
  28. 28.How many factors does 100 have?
  29. 29.2/3 + 10/12 =
  30. 30.If 5 kg of rice costs ₹435, how many kg can you buy for ₹261?
  31. 31.Find the LCM of 12, 7 and 6.
  32. 32.Find the LCM of 12 and 32.
  33. 33.Find the LCM of 21 and 15.
  34. 34.Find the HCF of 50 and 40.
  35. 35.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 6, 15 or 10.
  36. 36.3/4 of 28 + 9 × 9 =
  37. 37.Find the HCF of 52 and 117.
  38. 38.If 7 kg of rice costs ₹210, how many kg can you buy for ₹270?
  39. 39.Find the third proportional to 4 and 12 (that is, 4 : 12 = 12 : ?).
  40. 40.Find the HCF of 18 and 24.

Answer key

  1. 165
  2. 26
  3. 96
  4. 41000
  5. 7
  6. 80
  7. 5/18
  8. 378
  9. 5577
  10. 210
  11. 132
  12. 48.3
  13. 432
  14. 240
  15. 8/35
  16. 94
  17. 10
  18. 30
  19. 18230
  20. 5
  21. 42
  22. 2
  23. 7
  24. 12
  25. 1300
  26. 54.3
  27. 20
  28. 9
  29. 3/2
  30. 3
  31. 84
  32. 96
  33. 105
  34. 10
  35. 33
  36. 102
  37. 13
  38. 9
  39. 36
  40. 6

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