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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 702 · 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. 1.1/5 − 1/6 =
  2. 2.A hostel has enough food for 8 students for 22 days. How many days will the same food last for 11 students?
  3. 3.1/2 + 9/11 =
  4. 4.Three temple bells ring every 9, 12 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.Divide ₹276 between Saanvi and Karan in the ratio 5 : 1. How much does Karan get (in ₹)?
  6. 6.Meera scored 4 marks out of 20 in a test. What percentage did Meera score?
  7. 7.9 : 10 = 45 : ?
  8. 8.If 5 cricket balls cost ₹200, how much do 15 cricket balls cost (in ₹)?
  9. 9.The ratio of boys to girls in a class is 7 : 4. There are 21 boys. How many girls are there?
  10. 10.Round 94338 to the nearest hundred.
  11. 11.What is 10% of 500?
  12. 12.Manav scored 4 marks out of 40 in a test. What percentage did Manav score?
  13. 13.A car goes 63 km on 7 litres of petrol. How far can it go on 5 litres (in km)?
  14. 14.The ratio of boys to girls in a class is 1 : 5. There are 2 boys. How many girls are there?
  15. 15.1/4 × 2/5 =
  16. 16.What is the smallest number you must add to 678 so that it divides exactly by 13?
  17. 17.The HCF of two numbers is 2 and their LCM is 72. One of the numbers is 8. What is the other number?
  18. 18.Three temple bells ring every 30, 8 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  19. 19.Which of these numbers divides exactly by 3? (a) 2807 (b) 2375 (c) 8581 (d) 6114
  20. 20.The ratio of boys to girls in a class is 8 : 9. There are 72 boys. How many girls are there?
  21. 21.Find the LCM of 10, 2 and 11.
  22. 22.What percent of 20 is 6?
  23. 23.The HCF of two numbers is 2 and their LCM is 56. One of the numbers is 14. What is the other number?
  24. 24.8 : 2 = 72 : ?
  25. 25.(12 + 2) × 4 − 17 =
  26. 26.Write 12/25 as a percent.
  27. 27.The HCF of two numbers is 3 and their LCM is 60. One of the numbers is 12. What is the other number?
  28. 28.Two tanks hold 150 litres and 350 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.The HCF of two numbers is 9 and their LCM is 405. One of the numbers is 81. What is the other number?
  30. 30.What percent of 80 is 20?
  31. 31.Round 40245 to the nearest thousand.
  32. 32.Find the LCM of 3, 5 and 8.
  33. 33.If 5 kg of rice costs ₹270, how many kg can you buy for ₹162?
  34. 34.How many factors does 58 have?
  35. 35.Which of these numbers divides exactly by 9? (a) 7746 (b) 3733 (c) 7911 (d) 7624
  36. 36.Round 39.87 to one decimal place. =
  37. 37.What is the smallest number you must add to 223 so that it divides exactly by 12?
  38. 38.Two tanks hold 90 litres and 225 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  39. 39.3/4 − 2/3 =
  40. 40.Which is closest to 2501 ÷ 51? (a) 500 (b) 100 (c) 50 (d) 25

Answer key

  1. 1/30
  2. 16
  3. 29/22
  4. 72
  5. 46
  6. 20
  7. 50
  8. 600
  9. 12
  10. 94300
  11. 50
  12. 10
  13. 45
  14. 10
  15. 1/10
  16. 11
  17. 18
  18. 120
  19. 6114
  20. 81
  21. 110
  22. 30
  23. 8
  24. 18
  25. 39
  26. 48
  27. 15
  28. 50
  29. 45
  30. 25
  31. 40000
  32. 120
  33. 3
  34. 4
  35. 7911
  36. 39.9
  37. 5
  38. 45
  39. 1/12
  40. 50

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