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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 952 · 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 16 and 10.
  2. 2.The HCF of two numbers is 2 and their LCM is 144. One of the numbers is 16. What is the other number?
  3. 3.If 8 notebooks cost ₹336, how much do 3 notebooks cost (in ₹)?
  4. 4.The HCF of two numbers is 3 and their LCM is 168. One of the numbers is 21. What is the other number?
  5. 5.50% of a number is 171. What is the number?
  6. 6.Round 68967 to the nearest ten.
  7. 7.3 : 5 = 12 : ?
  8. 8.If 4 pens cost ₹92, how much do 19 pens cost (in ₹)?
  9. 9.3/5 − 3/8 =
  10. 10.Find the LCM of 54 and 24.
  11. 11.5% of a number is 6. What is the number?
  12. 12.A car goes 44 km on 4 litres of petrol. How far can it go on 39 litres (in km)?
  13. 13.How many factors does 86 have?
  14. 14.7 × (20 − 3) + 24 ÷ 6 =
  15. 15.Divide ₹253 between Ishaan and Kabir in the ratio 6 : 5. How much does Ishaan get (in ₹)?
  16. 16.30% of a number is 153. What is the number?
  17. 17.If 5 bottles of juice cost ₹185, how much do 6 bottles of juice cost (in ₹)?
  18. 18.The HCF of two numbers is 6 and their LCM is 108. One of the numbers is 54. What is the other number?
  19. 19.Find the LCM of 9 and 7.
  20. 20.If 11 pencil boxes cost ₹253, how much do 9 pencil boxes cost (in ₹)?
  21. 21.Round 20.49 to one decimal place. =
  22. 22.10% of a number is 6. What is the number?
  23. 23.Divide ₹216 between Rahul and Sneha in the ratio 8 : 1. How much does Sneha get (in ₹)?
  24. 24.Which of these numbers divides exactly by 4? (a) 1383 (b) 3981 (c) 6577 (d) 4308
  25. 25.6 × (11 − 1) + 66 ÷ 6 =
  26. 26.6.79 + 2.8 =
  27. 27.Zoya scored 2 marks out of 20 in a test. What percentage did Zoya score?
  28. 28.The ratio of boys to girls in a class is 1 : 7. There are 2 boys. How many girls are there?
  29. 29.How many factors does 85 have?
  30. 30.Find the HCF of 75 and 30.
  31. 31.If 4 kg of rice costs ₹132, how many kg can you buy for ₹165?
  32. 32.If 7 notebooks cost ₹105, how much do 10 notebooks cost (in ₹)?
  33. 33.4 × (19 − 3) + 50 ÷ 5 =
  34. 34.The ratio of boys to girls in a class is 7 : 2. There are 28 boys. How many girls are there?
  35. 35.28 ÷ 7 × 5 + 9 =
  36. 36.4 : 8 = 32 : ?
  37. 37.Nisha scored 1 marks out of 20 in a test. What percentage did Nisha score?
  38. 38.How many factors does 78 have?
  39. 39.3 : 4 = 21 : ?
  40. 40.What is the smallest number you must add to 850 so that it divides exactly by 13?

Answer key

  1. 80
  2. 18
  3. 126
  4. 24
  5. 342
  6. 68970
  7. 20
  8. 437
  9. 9/40
  10. 216
  11. 120
  12. 429
  13. 4
  14. 123
  15. 138
  16. 510
  17. 222
  18. 12
  19. 63
  20. 207
  21. 20.5
  22. 60
  23. 24
  24. 4308
  25. 71
  26. 9.59
  27. 10
  28. 14
  29. 4
  30. 15
  31. 5
  32. 150
  33. 74
  34. 8
  35. 29
  36. 64
  37. 5
  38. 8
  39. 28
  40. 8

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