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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 2 · 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 is 150% of 18?
  2. 2.If 2 notebooks cost ₹38, how much do 6 notebooks cost (in ₹)?
  3. 3.39 + 6 × 4 − 11 =
  4. 4.Three temple bells ring every 9, 15 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.What is 15% of 40?
  6. 6.(2 + 3) × 7 − 4 =
  7. 7.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  8. 8.61 − 16 ÷ 2 × 6 =
  9. 9.Write 1/4 as a percent.
  10. 10.The HCF of two numbers is 4 and their LCM is 72. One of the numbers is 36. What is the other number?
  11. 11.Find the HCF of 18 and 14.
  12. 12.If 11 pencil boxes cost ₹649, how much do 5 pencil boxes cost (in ₹)?
  13. 13.Which of these numbers divides exactly by 4? (a) 6292 (b) 7686 (c) 6903 (d) 7479
  14. 14.Three temple bells ring every 10, 6 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.If 3 kg of rice costs ₹138, how many kg can you buy for ₹414?
  16. 16.Priya scored 14 marks out of 20 in a test. What percentage did Priya score?
  17. 17.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  18. 18.Aditya scored 12 marks out of 40 in a test. What percentage did Aditya score?
  19. 19.A car goes 144 km on 12 litres of petrol. How far can it go on 40 litres (in km)?
  20. 20.If 3 cricket balls cost ₹27, how much do 18 cricket balls cost (in ₹)?
  21. 21.Round 50.64 to one decimal place. =
  22. 22.(4 + 3) × 6 − 9 =
  23. 23.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  24. 24.The HCF of two numbers is 6 and their LCM is 90. One of the numbers is 30. What is the other number?
  25. 25.The HCF of two numbers is 2 and their LCM is 90. One of the numbers is 18. What is the other number?
  26. 26.What is 25% of 108?
  27. 27.Round 2267 to the nearest thousand.
  28. 28.46 + 2 × 5 − 16 =
  29. 29.How many factors does 100 have?
  30. 30.23 + 7 × 9 − 12 =
  31. 31.Find the LCM of 7 and 4.
  32. 32.What is the smallest number you must add to 926 so that it divides exactly by 13?
  33. 33.The HCF of two numbers is 2 and their LCM is 72. One of the numbers is 8. What is the other number?
  34. 34.50 − 42 ÷ 7 × 6 =
  35. 35.Which is closest to 100 + 603 + 699? (a) 1300 (b) 1400 (c) 1600 (d) 1500
  36. 36.Find the HCF of 135 and 105.
  37. 37.Pooja takes 30 seconds and Vivaan takes 48 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?
  38. 38.Three temple bells ring every 18, 24 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  39. 39.Sneha scored 60 marks out of 80 in a test. What percentage did Sneha score?
  40. 40.1/2 of 8 + 5 × 5 =

Answer key

  1. 27
  2. 114
  3. 52
  4. 90
  5. 6
  6. 31
  7. 8
  8. 13
  9. 25
  10. 8
  11. 2
  12. 295
  13. 6292
  14. 30
  15. 9
  16. 70
  17. 54
  18. 30
  19. 480
  20. 162
  21. 50.6
  22. 33
  23. 27
  24. 18
  25. 10
  26. 27
  27. 2000
  28. 40
  29. 9
  30. 74
  31. 28
  32. 10
  33. 18
  34. 14
  35. 1400
  36. 15
  37. 240
  38. 72
  39. 75
  40. 29

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