← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 452 · 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.Three temple bells ring every 15, 18 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  2. 2.What is 5/6 of 138 kg?
  3. 3.What is 75% of 404?
  4. 4.Two tanks hold 50 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  5. 5.Write 3/4 as a percent.
  6. 6.Find the LCM of 6 and 8.
  7. 7.2 painters can paint a school in 28 days. How many days would 7 painters take, working at the same speed?
  8. 8.What is the smallest number you must add to 499 so that it divides exactly by 6?
  9. 9.A hostel has enough food for 8 students for 10 days. How many days will the same food last for 5 students?
  10. 10.12% of a number is 27. What is the number?
  11. 11.Find the LCM of 3, 11 and 5.
  12. 12.What is the smallest number you must add to 175 so that it divides exactly by 8?
  13. 13.What is the smallest number you must add to 860 so that it divides exactly by 12?
  14. 14.Round 25.67 to one decimal place. =
  15. 15.8 ÷ 4 × 4 + 21 =
  16. 16.4/8 × 4/5 =
  17. 17.27 − 12 ÷ 6 × 2 =
  18. 18.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 3, 8 or 4.
  19. 19.Divide ₹280 between Ananya and Rahul in the ratio 9 : 1. How much does Ananya get (in ₹)?
  20. 20.Find the HCF of 45 and 72.
  21. 21.What is 6/7 of 161 kg?
  22. 22.The ratio of boys to girls in a class is 5 : 9. There are 40 boys. How many girls are there?
  23. 23.Find the LCM of 5, 13 and 2.
  24. 24.Divide ₹336 between Zoya and Karan in the ratio 7 : 1. How much does Zoya get (in ₹)?
  25. 25.Which is closest to 895 + 199 + 97? (a) 1400 (b) 1300 (c) 1200 (d) 1100
  26. 26.2/5 of 20 + 2 × 9 =
  27. 27.What is the smallest number you must take away from 321 so that it divides exactly by 6?
  28. 28.The HCF of two numbers is 6 and their LCM is 126. One of the numbers is 42. What is the other number?
  29. 29.A hall floor is 200 cm long and 175 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  30. 30.Three temple bells ring every 10, 20 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  31. 31.What percent of 25 is 18?
  32. 32.Pooja scored 24 marks out of 50 in a test. What percentage did Pooja score?
  33. 33.The HCF of two numbers is 3 and their LCM is 30. One of the numbers is 15. What is the other number?
  34. 34.Round 75.67 to one decimal place. =
  35. 35.Find the LCM of 35 and 15.
  36. 36.7.3 × 4 =
  37. 37.Three temple bells ring every 20, 5 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  38. 38.Find the LCM of 28 and 24.
  39. 39.How many factors does 89 have?
  40. 40.How many factors does 18 have?

Answer key

  1. 90
  2. 115
  3. 303
  4. 10
  5. 75
  6. 24
  7. 8
  8. 5
  9. 16
  10. 225
  11. 165
  12. 1
  13. 4
  14. 25.7
  15. 29
  16. 2/5
  17. 23
  18. 26
  19. 252
  20. 9
  21. 138
  22. 72
  23. 130
  24. 294
  25. 1200
  26. 26
  27. 3
  28. 18
  29. 56
  30. 120
  31. 72
  32. 48
  33. 6
  34. 75.7
  35. 105
  36. 29.2
  37. 120
  38. 168
  39. 2
  40. 6

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