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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 213 · 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. 1.12 painters can paint a school in 22 days. How many days would 11 painters take, working at the same speed?
  2. 2.What is 50% of 392?
  3. 3.Find the LCM of 12 and 9.
  4. 4.Which is closest to 1196 ÷ 19? (a) 600 (b) 60 (c) 30 (d) 120
  5. 5.A hall floor is 200 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  6. 6.What is 5% of 280?
  7. 7.80% of a number is 120. What is the number?
  8. 8.Find the HCF of 54 and 45.
  9. 9.Find the HCF of 8 and 36.
  10. 10.10% of a number is 55. What is the number?
  11. 11.Aditya takes 80 seconds and Karan takes 50 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.Divide ₹209 between Isha and Meera in the ratio 6 : 5. How much does Meera get (in ₹)?
  13. 13.Find the HCF of 44 and 99.
  14. 14.If 5 pens cost ₹290, how much do 16 pens cost (in ₹)?
  15. 15.How many factors does 97 have?
  16. 16.Which is closest to 4497 ÷ 49? (a) 900 (b) 180 (c) 45 (d) 90
  17. 17.12 + 10 × 11 − 6 =
  18. 18.How many factors does 81 have?
  19. 19.If 3 cricket balls cost ₹108, how much do 19 cricket balls cost (in ₹)?
  20. 20.How many factors does 92 have?
  21. 21.Find the HCF of 77 and 88.
  22. 22.Find the LCM of 4, 8 and 5.
  23. 23.What percent of 250 is 75?
  24. 24.Find the HCF of 126 and 28.
  25. 25.Find the HCF of 90 and 40.
  26. 26.80% of a number is 72. What is the number?
  27. 27.The HCF of two numbers is 5 and their LCM is 90. One of the numbers is 10. What is the other number?
  28. 28.6 : 8 = 12 : ?
  29. 29.Round 56024 to the nearest thousand.
  30. 30.7 × (25 − 20) + 30 ÷ 6 =
  31. 31.A car goes 75 km on 5 litres of petrol. How far can it go on 38 litres (in km)?
  32. 32.The ratio of boys to girls in a class is 7 : 8. There are 14 boys. How many girls are there?
  33. 33.What is the smallest number you must take away from 767 so that it divides exactly by 11?
  34. 34.Which is closest to 297 × 20? (Round each number first.) (a) 6000 (b) 60000 (c) 600 (d) 12000
  35. 35.27 ÷ 9 × 2 + 3 =
  36. 36.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  37. 37.Which is closest to 800 × 82? (Round each number first.) (a) 128000 (b) 6400 (c) 64000 (d) 640000
  38. 38.If 3 kg of rice costs ₹108, how many kg can you buy for ₹180?
  39. 39.Divide ₹340 between Tara and Karan in the ratio 9 : 1. How much does Tara get (in ₹)?
  40. 40.Find the LCM of 25 and 15.

Answer key

  1. 24
  2. 196
  3. 36
  4. 60
  5. 10
  6. 14
  7. 150
  8. 9
  9. 4
  10. 550
  11. 400
  12. 95
  13. 11
  14. 928
  15. 2
  16. 90
  17. 116
  18. 5
  19. 684
  20. 6
  21. 11
  22. 40
  23. 30
  24. 14
  25. 10
  26. 90
  27. 45
  28. 16
  29. 56000
  30. 40
  31. 570
  32. 16
  33. 8
  34. 6000
  35. 9
  36. 24
  37. 64000
  38. 5
  39. 306
  40. 75

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