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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 855 · 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 HCF of 60 and 36.
  2. 2.Find the HCF of 21 and 35.
  3. 3.If 11 kites cost ₹220, how much do 18 kites cost (in ₹)?
  4. 4.A car goes 96 km on 6 litres of petrol. How far can it go on 27 litres (in km)?
  5. 5.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 8, 3 or 6.
  6. 6.46 + 12 × 10 − 20 =
  7. 7.5% of a number is 7. What is the number?
  8. 8.If 7 kg of rice costs ₹448, how many kg can you buy for ₹512?
  9. 9.Which of these numbers divides exactly by 11? (a) 8818 (b) 2395 (c) 7172 (d) 2147
  10. 10.Which is closest to 599 + 595 + 402? (a) 1500 (b) 1800 (c) 1600 (d) 1700
  11. 11.The HCF of two numbers is 3 and their LCM is 63. One of the numbers is 21. What is the other number?
  12. 12.Round 96.49 to one decimal place. =
  13. 13.How many factors does 83 have?
  14. 14.How many factors does 44 have?
  15. 15.Find the LCM of 10 and 4.
  16. 16.Find the LCM of 9 and 2.
  17. 17.(16 + 3) × 5 − 20 =
  18. 18.Isha takes 36 seconds and Rohan takes 80 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?
  19. 19.The ratio of boys to girls in a class is 3 : 7. There are 12 boys. How many girls are there?
  20. 20.The HCF of two numbers is 2 and their LCM is 48. One of the numbers is 6. What is the other number?
  21. 21.Which of these numbers divides exactly by 6? (a) 3750 (b) 1895 (c) 9159 (d) 8956
  22. 22.4/5 × 2/6 =
  23. 23.Aditya takes 40 seconds and Nisha takes 72 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?
  24. 24.4 × (22 − 17) + 20 ÷ 4 =
  25. 25.Which is closest to 1507 ÷ 49? (a) 60 (b) 15 (c) 300 (d) 30
  26. 26.What is the smallest number you must add to 419 so that it divides exactly by 7?
  27. 27.2 × (11 − 9) + 45 ÷ 9 =
  28. 28.What is the smallest number you must take away from 317 so that it divides exactly by 7?
  29. 29.What is the smallest number you must add to 151 so that it divides exactly by 9?
  30. 30.Write 1/2 as a percent.
  31. 31.Kabir scored 30 marks out of 40 in a test. What percentage did Kabir score?
  32. 32.Find the HCF of 20 and 45.
  33. 33.What is the smallest number you must take away from 275 so that it divides exactly by 4?
  34. 34.A car goes 135 km on 9 litres of petrol. How far can it go on 25 litres (in km)?
  35. 35.Find the HCF of 39 and 52.
  36. 36.40% of a number is 24. What is the number?
  37. 37.50% of a number is 77. What is the number?
  38. 38.Aditya scored 13 marks out of 20 in a test. What percentage did Aditya score?
  39. 39.Kabir takes 60 seconds and Dev takes 50 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?
  40. 40.What percent of 500 is 5?

Answer key

  1. 12
  2. 7
  3. 360
  4. 432
  5. 25
  6. 146
  7. 140
  8. 8
  9. 7172
  10. 1600
  11. 9
  12. 96.5
  13. 2
  14. 6
  15. 20
  16. 18
  17. 75
  18. 720
  19. 28
  20. 16
  21. 3750
  22. 4/15
  23. 360
  24. 25
  25. 30
  26. 1
  27. 9
  28. 2
  29. 2
  30. 50
  31. 75
  32. 5
  33. 3
  34. 375
  35. 13
  36. 60
  37. 154
  38. 65
  39. 300
  40. 1

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