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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 500 · 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.Two tanks hold 270 litres and 240 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  2. 2.Round 14.84 to one decimal place. =
  3. 3.2/12 + 1/3 =
  4. 4.If 10 kites cost ₹270, how much do 5 kites cost (in ₹)?
  5. 5.Which is closest to 896 × 48? (Round each number first.) (a) 90000 (b) 45000 (c) 4500 (d) 450000
  6. 6.Write 9/10 as a percent.
  7. 7.The HCF of two numbers is 5 and their LCM is 150. One of the numbers is 30. What is the other number?
  8. 8.Which is closest to 798 × 69? (Round each number first.) (a) 5600 (b) 112000 (c) 560000 (d) 56000
  9. 9.What percent of 25 is 19?
  10. 10.Vivaan scored 4 marks out of 80 in a test. What percentage did Vivaan score?
  11. 11.Which is closest to 499 + 396 + 701? (a) 1800 (b) 1500 (c) 1700 (d) 1600
  12. 12.4.56 + 6.9 =
  13. 13.Which is closest to 702 + 704 + 305? (a) 1700 (b) 1600 (c) 1900 (d) 1800
  14. 14.Divide ₹49 between Meera and Arjun in the ratio 3 : 4. How much does Meera get (in ₹)?
  15. 15.If 7 kg of rice costs ₹581, how many kg can you buy for ₹498?
  16. 16.28 + 4 × 12 − 1 =
  17. 17.Ananya takes 30 seconds and Manav 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?
  18. 18.Which of these numbers divides exactly by 4? (a) 4529 (b) 5824 (c) 1037 (d) 4298
  19. 19.1/2 + 2/5 =
  20. 20.Three temple bells ring every 8, 4 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  21. 21.The ratio of boys to girls in a class is 9 : 8. There are 18 boys. How many girls are there?
  22. 22.Find the LCM of 2, 12 and 6.
  23. 23.3 × (21 − 6) + 18 ÷ 3 =
  24. 24.11 + 9 × 7 − 6 =
  25. 25.The HCF of two numbers is 8 and their LCM is 224. One of the numbers is 56. What is the other number?
  26. 26.What is 12% of 600?
  27. 27.5/9 × 2/7 =
  28. 28.If 5 kg of rice costs ₹265, how many kg can you buy for ₹477?
  29. 29.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 10 or 3.
  30. 30.Find the HCF of 24 and 21.
  31. 31.2.4 × 3 =
  32. 32.Which is closest to 799 × 71? (Round each number first.) (a) 560000 (b) 56000 (c) 5600 (d) 112000
  33. 33.Karan takes 48 seconds and Pooja takes 60 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?
  34. 34.Which is closest to 604 × 28? (Round each number first.) (a) 1800 (b) 36000 (c) 180000 (d) 18000
  35. 35.(20 + 4) × 7 − 18 =
  36. 36.Sneha takes 60 seconds and Farhan takes 36 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?
  37. 37.Two tanks hold 50 litres and 125 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  38. 38.2/9 + 2/11 =
  39. 39.A car goes 192 km on 12 litres of petrol. How far can it go on 8 litres (in km)?
  40. 40.Find the LCM of 2, 6 and 12.

Answer key

  1. 30
  2. 14.8
  3. 1/2
  4. 135
  5. 45000
  6. 90
  7. 25
  8. 56000
  9. 76
  10. 5
  11. 1600
  12. 11.46
  13. 1700
  14. 21
  15. 6
  16. 75
  17. 120
  18. 5824
  19. 9/10
  20. 72
  21. 16
  22. 12
  23. 51
  24. 68
  25. 32
  26. 72
  27. 10/63
  28. 9
  29. 31
  30. 3
  31. 7.2
  32. 56000
  33. 240
  34. 18000
  35. 150
  36. 180
  37. 25
  38. 40/99
  39. 128
  40. 12

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