← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 3 · 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 140 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  2. 2.Find the HCF of 63 and 49.
  3. 3.What percent of 25 is 2?
  4. 4.What is 5% of 100?
  5. 5.8.05 + 1.8 =
  6. 6.7 : 9 = 35 : ?
  7. 7.Which is closest to 305 + 400 + 99? (a) 800 (b) 1000 (c) 700 (d) 900
  8. 8.Find the LCM of 4, 8 and 2.
  9. 9.How many factors does 68 have?
  10. 10.Find the HCF of 45 and 60.
  11. 11.If 3 kg of rice costs ₹156, how many kg can you buy for ₹520?
  12. 12.2 × (19 − 16) + 18 ÷ 3 =
  13. 13.Find the HCF of 24 and 20.
  14. 14.A hostel has enough food for 4 students for 8 days. How many days will the same food last for 8 students?
  15. 15.5% of a number is 28. What is the number?
  16. 16.Round 46.18 to one decimal place. =
  17. 17.If 2 pens cost ₹74, how much do 13 pens cost (in ₹)?
  18. 18.Rohan takes 60 seconds and Ananya takes 54 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.Vivaan takes 45 seconds and Rahul takes 75 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?
  20. 20.9 : 7 = 54 : ?
  21. 21.Vivaan takes 40 seconds and Farhan 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?
  22. 22.Three temple bells ring every 12, 20 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  23. 23.Which is closest to 600 × 21? (Round each number first.) (a) 120000 (b) 1200 (c) 24000 (d) 12000
  24. 24.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?
  25. 25.What is 5/8 of 64 students?
  26. 26.Find the LCM of 36 and 8.
  27. 27.4 × (13 − 1) + 27 ÷ 3 =
  28. 28.What is the smallest number you must add to 395 so that it divides exactly by 6?
  29. 29.8 × (10 − 5) + 9 ÷ 3 =
  30. 30.Find the LCM of 3, 9 and 11.
  31. 31.30% of a number is 78. What is the number?
  32. 32.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 3, 12 or 5.
  33. 33.A hostel has enough food for 10 students for 16 days. How many days will the same food last for 8 students?
  34. 34.9 : 2 = 63 : ?
  35. 35.Which of these numbers divides exactly by 9? (a) 2422 (b) 9855 (c) 2974 (d) 2244
  36. 36.Find the third proportional to 6 and 24 (that is, 6 : 24 = 24 : ?).
  37. 37.Round 55246 to the nearest ten.
  38. 38.How many factors does 17 have?
  39. 39.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 4, 9 or 3.
  40. 40.If 6 kg of rice costs ₹276, how many kg can you buy for ₹552?

Answer key

  1. 28
  2. 7
  3. 8
  4. 5
  5. 9.85
  6. 45
  7. 800
  8. 8
  9. 6
  10. 15
  11. 10
  12. 12
  13. 4
  14. 4
  15. 560
  16. 46.2
  17. 481
  18. 540
  19. 225
  20. 42
  21. 360
  22. 120
  23. 12000
  24. 30
  25. 40
  26. 72
  27. 57
  28. 1
  29. 43
  30. 99
  31. 260
  32. 61
  33. 20
  34. 14
  35. 9855
  36. 96
  37. 55250
  38. 2
  39. 38
  40. 12

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude