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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 178 · 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.Rahul takes 50 seconds and Farhan 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?
  2. 2.Find the HCF of 36 and 81.
  3. 3.Which is closest to 2004 ÷ 39? (a) 25 (b) 50 (c) 100 (d) 500
  4. 4.A hostel has enough food for 5 students for 16 days. How many days will the same food last for 2 students?
  5. 5.Find the LCM of 2, 7 and 11.
  6. 6.If 3 pens cost ₹156, how much do 5 pens cost (in ₹)?
  7. 7.12 ÷ 6 × 9 + 25 =
  8. 8.4 painters can paint a school in 11 days. How many days would 22 painters take, working at the same speed?
  9. 9.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 12, 4 or 10.
  10. 10.Find the HCF of 135 and 75.
  11. 11.Which of these numbers divides exactly by 6? (a) 4906 (b) 7228 (c) 8622 (d) 2140
  12. 12.What is the smallest number you must take away from 292 so that it divides exactly by 3?
  13. 13.1/7 of 63 + 2 × 5 =
  14. 14.Write 1/2 as a percent.
  15. 15.Nisha scored 21 marks out of 25 in a test. What percentage did Nisha score?
  16. 16.The ratio of boys to girls in a class is 2 : 9. There are 8 boys. How many girls are there?
  17. 17.If 7 pencil boxes cost ₹350, how much do 10 pencil boxes cost (in ₹)?
  18. 18.4/5 + 3/10 =
  19. 19.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 3, 12 or 15.
  20. 20.Which is closest to 596 ÷ 31? (a) 20 (b) 200 (c) 10 (d) 40
  21. 21.8 : 12 = 64 : ?
  22. 22.2/3 − 2/12 =
  23. 23.Round 34.79 to one decimal place. =
  24. 24.6 painters can paint a school in 26 days. How many days would 3 painters take, working at the same speed?
  25. 25.What is 40% of 585?
  26. 26.Find the LCM of 10 and 8.
  27. 27.What is the smallest number you must add to 347 so that it divides exactly by 11?
  28. 28.What is 15% of 160?
  29. 29.Divide ₹371 between Rohan and Priya in the ratio 4 : 3. How much does Rohan get (in ₹)?
  30. 30.If 3 pencil boxes cost ₹12, how much do 19 pencil boxes cost (in ₹)?
  31. 31.Which is closest to 202 + 95 + 500? (a) 1000 (b) 900 (c) 800 (d) 700
  32. 32.Which is closest to 302 + 301 + 298? (a) 1000 (b) 1100 (c) 800 (d) 900
  33. 33.3.1 × 3 =
  34. 34.Round 29.63 to one decimal place. =
  35. 35.8 : 2 = 72 : ?
  36. 36.The HCF of two numbers is 9 and their LCM is 90. One of the numbers is 45. What is the other number?
  37. 37.Find the LCM of 48 and 18.
  38. 38.Which is closest to 1202 ÷ 29? (a) 80 (b) 400 (c) 20 (d) 40
  39. 39.What percent of 200 is 124?
  40. 40.A hall floor is 200 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?

Answer key

  1. 400
  2. 9
  3. 50
  4. 40
  5. 154
  6. 260
  7. 43
  8. 2
  9. 61
  10. 15
  11. 8622
  12. 1
  13. 19
  14. 50
  15. 84
  16. 36
  17. 500
  18. 11/10
  19. 62
  20. 20
  21. 96
  22. 1/2
  23. 34.8
  24. 52
  25. 234
  26. 40
  27. 5
  28. 24
  29. 212
  30. 76
  31. 800
  32. 900
  33. 9.3
  34. 29.6
  35. 18
  36. 18
  37. 144
  38. 40
  39. 62
  40. 12

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