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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 44 · 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.A hall floor is 300 cm long and 120 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  2. 2.Divide ₹528 between Rahul and Meera in the ratio 7 : 4. How much does Meera get (in ₹)?
  3. 3.Round 60897 to the nearest thousand.
  4. 4.Find the LCM of 12 and 21.
  5. 5.6 : 13 = 12 : ?
  6. 6.5 × (11 − 5) + 28 ÷ 4 =
  7. 7.Tara scored 40 marks out of 50 in a test. What percentage did Tara score?
  8. 8.If 2 cricket balls cost ₹40, how much do 11 cricket balls cost (in ₹)?
  9. 9.Divide ₹450 between Ishaan and Farhan in the ratio 8 : 1. How much does Farhan get (in ₹)?
  10. 10.Two tanks hold 30 litres and 105 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  11. 11.5.81 + 8.9 =
  12. 12.What percent of 200 is 76?
  13. 13.36 ÷ 3 × 9 + 22 =
  14. 14.Two tanks hold 45 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  15. 15.Dev scored 8 marks out of 40 in a test. What percentage did Dev score?
  16. 16.Ananya takes 36 seconds and Ishaan takes 30 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?
  17. 17.If 7 pens cost ₹105, how much do 14 pens cost (in ₹)?
  18. 18.11 : 9 = 44 : ?
  19. 19.A car goes 130 km on 10 litres of petrol. How far can it go on 9 litres (in km)?
  20. 20.If 4 bottles of juice cost ₹188, how much do 9 bottles of juice cost (in ₹)?
  21. 21.Which is closest to 500 × 69? (Round each number first.) (a) 70000 (b) 35000 (c) 3500 (d) 350000
  22. 22.Divide ₹430 between Rahul and Aditya in the ratio 3 : 7. How much does Rahul get (in ₹)?
  23. 23.The HCF of two numbers is 3 and their LCM is 63. One of the numbers is 21. What is the other number?
  24. 24.Sneha takes 60 seconds and Priya 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?
  25. 25.If 7 kg of rice costs ₹329, how many kg can you buy for ₹141?
  26. 26.Find the HCF of 21 and 6.
  27. 27.54 ÷ 6 × 9 + 5 =
  28. 28.A hostel has enough food for 7 students for 6 days. How many days will the same food last for 14 students?
  29. 29.25% of a number is 19. What is the number?
  30. 30.What is the smallest number you must take away from 243 so that it divides exactly by 7?
  31. 31.7.2 × 5 =
  32. 32.A hall floor is 315 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  33. 33.The ratio of boys to girls in a class is 5 : 3. There are 10 boys. How many girls are there?
  34. 34.What is 30% of 450?
  35. 35.1/6 × 9/10 =
  36. 36.A hostel has enough food for 4 students for 26 days. How many days will the same food last for 2 students?
  37. 37.If 4 pens cost ₹176, how much do 14 pens cost (in ₹)?
  38. 38.Find the HCF of 28 and 21.
  39. 39.Rohan scored 18 marks out of 40 in a test. What percentage did Rohan score?
  40. 40.Find the LCM of 21 and 27.

Answer key

  1. 10
  2. 192
  3. 61000
  4. 84
  5. 26
  6. 37
  7. 80
  8. 220
  9. 50
  10. 15
  11. 14.71
  12. 38
  13. 130
  14. 5
  15. 20
  16. 180
  17. 210
  18. 36
  19. 117
  20. 423
  21. 35000
  22. 129
  23. 9
  24. 120
  25. 3
  26. 3
  27. 86
  28. 3
  29. 76
  30. 5
  31. 36
  32. 28
  33. 6
  34. 135
  35. 3/20
  36. 52
  37. 616
  38. 7
  39. 45
  40. 189

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