← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 658 · 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 20% of 390?
  2. 2.Find the LCM of 10 and 16.
  3. 3.Round 80.12 to one decimal place. =
  4. 4.Round 37459 to the nearest hundred.
  5. 5.The ratio of boys to girls in a class is 1 : 4. There are 10 boys. How many girls are there?
  6. 6.Ishaan scored 10 marks out of 25 in a test. What percentage did Ishaan score?
  7. 7.1/5 × 4/6 =
  8. 8.What is the smallest number you must take away from 798 so that it divides exactly by 4?
  9. 9.5.8 × 4 =
  10. 10.19 − 18 ÷ 9 × 8 =
  11. 11.Three temple bells ring every 15, 4 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  12. 12.Arjun scored 22 marks out of 50 in a test. What percentage did Arjun score?
  13. 13.What is the smallest number you must take away from 922 so that it divides exactly by 7?
  14. 14.Find the HCF of 135 and 60.
  15. 15.29 − 6 ÷ 2 × 8 =
  16. 16.Find the LCM of 9 and 15.
  17. 17.15 ÷ 3 × 9 + 15 =
  18. 18.Karan takes 90 seconds and Ananya takes 40 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.Find the LCM of 3, 9 and 4.
  20. 20.3 × (30 − 24) + 9 ÷ 3 =
  21. 21.What is 80% of 300?
  22. 22.Saanvi scored 12 marks out of 40 in a test. What percentage did Saanvi score?
  23. 23.2.4 × 9 =
  24. 24.If 9 kg of rice costs ₹459, how many kg can you buy for ₹663?
  25. 25.A car goes 75 km on 5 litres of petrol. How far can it go on 39 litres (in km)?
  26. 26.Rohan scored 18 marks out of 20 in a test. What percentage did Rohan score?
  27. 27.What is the smallest number you must add to 244 so that it divides exactly by 8?
  28. 28.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 6, 10 or 12.
  29. 29.Find the LCM of 32 and 36.
  30. 30.24 ÷ 2 × 9 + 20 =
  31. 31.6 × (24 − 15) + 36 ÷ 4 =
  32. 32.40% of a number is 10. What is the number?
  33. 33.(15 + 16) × 4 − 30 =
  34. 34.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  35. 35.The HCF of two numbers is 7 and their LCM is 126. One of the numbers is 14. What is the other number?
  36. 36.The ratio of boys to girls in a class is 2 : 3. There are 6 boys. How many girls are there?
  37. 37.Find the HCF of 21 and 15.
  38. 38.1/5 × 2/7 =
  39. 39.What percent of 25 is 3?
  40. 40.5% of a number is 15. What is the number?

Answer key

  1. 78
  2. 80
  3. 80.1
  4. 37500
  5. 40
  6. 40
  7. 2/15
  8. 2
  9. 23.2
  10. 3
  11. 60
  12. 44
  13. 5
  14. 15
  15. 5
  16. 45
  17. 60
  18. 360
  19. 36
  20. 21
  21. 240
  22. 30
  23. 21.6
  24. 13
  25. 585
  26. 90
  27. 4
  28. 62
  29. 288
  30. 128
  31. 63
  32. 25
  33. 94
  34. 50
  35. 63
  36. 9
  37. 3
  38. 2/35
  39. 12
  40. 300

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude