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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 730 · 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.(4 + 2) × 6 − 1 =
  2. 2.A hostel has enough food for 9 students for 5 days. How many days will the same food last for 3 students?
  3. 3.The HCF of two numbers is 5 and their LCM is 180. One of the numbers is 20. What is the other number?
  4. 4.Three temple bells ring every 10, 6 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.What is the smallest number you must add to 496 so that it divides exactly by 11?
  6. 6.Find the LCM of 9 and 12.
  7. 7.2/7 of 56 + 5 × 4 =
  8. 8.What is the smallest number you must take away from 599 so that it divides exactly by 6?
  9. 9.What is the smallest number you must take away from 262 so that it divides exactly by 12?
  10. 10.36 ÷ 4 × 9 + 4 =
  11. 11.Which is closest to 696 + 601 + 502? (a) 1800 (b) 1700 (c) 2000 (d) 1900
  12. 12.A car goes 144 km on 12 litres of petrol. How far can it go on 8 litres (in km)?
  13. 13.Find the HCF of 9 and 15.
  14. 14.Write 1/5 as a percent.
  15. 15.Which of these numbers divides exactly by 9? (a) 7652 (b) 8582 (c) 6012 (d) 3215
  16. 16.Divide ₹261 between Meera and Rohan in the ratio 8 : 1. How much does Meera get (in ₹)?
  17. 17.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 8, 4 or 3.
  18. 18.A car goes 48 km on 2 litres of petrol. How far can it go on 7 litres (in km)?
  19. 19.12 ÷ 3 × 2 + 9 =
  20. 20.Find the smallest number bigger than 6 that leaves a remainder of 1 when divided by 3, 5 or 6.
  21. 21.What is the smallest number you must add to 467 so that it divides exactly by 9?
  22. 22.2/4 − 1/3 =
  23. 23.Round 67.26 to one decimal place. =
  24. 24.40% of a number is 36. What is the number?
  25. 25.Which is closest to 198 + 600 + 96? (a) 900 (b) 1100 (c) 800 (d) 1000
  26. 26.Which is closest to 799 × 90? (Round each number first.) (a) 144000 (b) 72000 (c) 7200 (d) 720000
  27. 27.Which is closest to 896 × 82? (Round each number first.) (a) 720000 (b) 7200 (c) 72000 (d) 144000
  28. 28.If 12 erasers cost ₹84, how much do 8 erasers cost (in ₹)?
  29. 29.53 − 10 ÷ 2 × 4 =
  30. 30.1/4 × 2/9 =
  31. 31.Find the LCM of 18 and 30.
  32. 32.Manav scored 76 marks out of 80 in a test. What percentage did Manav score?
  33. 33.Which is closest to 197 + 100 + 196? (a) 600 (b) 400 (c) 500 (d) 700
  34. 34.2/7 of 77 + 3 × 4 =
  35. 35.A car goes 231 km on 11 litres of petrol. How far can it go on 33 litres (in km)?
  36. 36.The ratio of boys to girls in a class is 6 : 1. There are 18 boys. How many girls are there?
  37. 37.The HCF of two numbers is 8 and their LCM is 504. One of the numbers is 72. What is the other number?
  38. 38.5/6 − 6/8 =
  39. 39.Find the LCM of 3, 15 and 7.
  40. 40.If 3 pencil boxes cost ₹171, how much do 5 pencil boxes cost (in ₹)?

Answer key

  1. 35
  2. 15
  3. 45
  4. 60
  5. 10
  6. 36
  7. 36
  8. 5
  9. 10
  10. 85
  11. 1800
  12. 96
  13. 3
  14. 20
  15. 6012
  16. 232
  17. 26
  18. 168
  19. 17
  20. 31
  21. 1
  22. 1/6
  23. 67.3
  24. 90
  25. 900
  26. 72000
  27. 72000
  28. 56
  29. 33
  30. 1/18
  31. 90
  32. 95
  33. 500
  34. 34
  35. 693
  36. 3
  37. 56
  38. 1/12
  39. 105
  40. 285

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