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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 120 · 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. 1.10.4 ÷ 2 =
  2. 2.Two tanks hold 50 litres and 175 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  3. 3.A car goes 240 km on 10 litres of petrol. How far can it go on 7 litres (in km)?
  4. 4.Which is closest to 902 + 598 + 204? (a) 1700 (b) 1800 (c) 1900 (d) 1600
  5. 5.6/9 − 6/12 =
  6. 6.3.33 + 9.7 =
  7. 7.What is 60% of 180?
  8. 8.What is 20% of 250?
  9. 9.Find the third proportional to 7 and 28 (that is, 7 : 28 = 28 : ?).
  10. 10.A hall floor is 270 cm long and 225 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  11. 11.Diya takes 48 seconds and Kavya takes 80 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?
  12. 12.Round 32668 to the nearest thousand.
  13. 13.Write 1/2 as a percent.
  14. 14.A car goes 88 km on 4 litres of petrol. How far can it go on 20 litres (in km)?
  15. 15.5 : 10 = 20 : ?
  16. 16.7/9 − 1/6 =
  17. 17.How many factors does 91 have?
  18. 18.Zoya takes 75 seconds and Pooja takes 45 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. 19.2/5 × 1/11 =
  20. 20.The HCF of two numbers is 8 and their LCM is 144. One of the numbers is 72. What is the other number?
  21. 21.If 4 kg of rice costs ₹312, how many kg can you buy for ₹468?
  22. 22.Divide ₹375 between Sneha and Isha in the ratio 8 : 7. How much does Isha get (in ₹)?
  23. 23.38 − 24 ÷ 4 × 6 =
  24. 24.4 : 11 = 16 : ?
  25. 25.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 15, 6 or 4.
  26. 26.Divide ₹210 between Dev and Rahul in the ratio 1 : 5. How much does Rahul get (in ₹)?
  27. 27.20 ÷ 5 × 9 + 3 =
  28. 28.Find the HCF of 45 and 105.
  29. 29.If 4 kg of rice costs ₹108, how many kg can you buy for ₹81?
  30. 30.What percent of 50 is 3?
  31. 31.Two tanks hold 30 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  32. 32.Find the LCM of 10 and 15.
  33. 33.6/8 × 10/12 =
  34. 34.18.4 ÷ 2 =
  35. 35.Divide ₹351 between Nisha and Ishaan in the ratio 4 : 9. How much does Nisha get (in ₹)?
  36. 36.Which of these numbers divides exactly by 8? (a) 2322 (b) 6928 (c) 5749 (d) 1298
  37. 37.9.9 × 2 =
  38. 38.A car goes 28 km on 2 litres of petrol. How far can it go on 8 litres (in km)?
  39. 39.The ratio of boys to girls in a class is 1 : 9. There are 7 boys. How many girls are there?
  40. 40.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 9, 3 or 4.

Answer key

  1. 5.2
  2. 25
  3. 168
  4. 1700
  5. 1/6
  6. 13.03
  7. 108
  8. 50
  9. 112
  10. 30
  11. 240
  12. 33000
  13. 50
  14. 440
  15. 40
  16. 11/18
  17. 4
  18. 225
  19. 2/55
  20. 16
  21. 6
  22. 175
  23. 2
  24. 44
  25. 63
  26. 175
  27. 39
  28. 15
  29. 3
  30. 6
  31. 15
  32. 30
  33. 5/8
  34. 9.2
  35. 108
  36. 6928
  37. 19.8
  38. 112
  39. 63
  40. 38

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