← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 786 · 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.If 3 mangoes cost ₹9, how much do 14 mangoes cost (in ₹)?
  2. 2.Find the LCM of 2, 12 and 6.
  3. 3.Find the LCM of 15, 2 and 5.
  4. 4.8 : 10 = 56 : ?
  5. 5.What is 1/2 of 48 km?
  6. 6.Find the LCM of 7 and 6.
  7. 7.What is the smallest number you must take away from 129 so that it divides exactly by 9?
  8. 8.Find the LCM of 24 and 54.
  9. 9.Kabir scored 14 marks out of 20 in a test. What percentage did Kabir score?
  10. 10.A hall floor is 210 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  11. 11.If 10 pens cost ₹390, how much do 8 pens cost (in ₹)?
  12. 12.Two tanks hold 75 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  13. 13.Three temple bells ring every 6, 8 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  14. 14.4.6 × 3 =
  15. 15.Find the HCF of 54 and 42.
  16. 16.6 : 12 = 24 : ?
  17. 17.If 3 erasers cost ₹12, how much do 6 erasers cost (in ₹)?
  18. 18.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 10 or 12.
  19. 19.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  20. 20.(16 + 17) × 2 − 13 =
  21. 21.18 ÷ 6 × 6 + 23 =
  22. 22.A hall floor is 315 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  23. 23.A hostel has enough food for 8 students for 7 days. How many days will the same food last for 7 students?
  24. 24.Ananya takes 48 seconds and Pooja takes 90 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?
  25. 25.How many factors does 49 have?
  26. 26.5 × (17 − 6) + 24 ÷ 8 =
  27. 27.Two tanks hold 75 litres and 125 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  28. 28.Which is closest to 594 ÷ 19? (a) 30 (b) 300 (c) 60 (d) 15
  29. 29.8 : 10 = 32 : ?
  30. 30.What is the smallest number you must add to 926 so that it divides exactly by 8?
  31. 31.8 : 12 = 40 : ?
  32. 32.Isha scored 20 marks out of 80 in a test. What percentage did Isha score?
  33. 33.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
  34. 34.Find the LCM of 6, 4 and 10.
  35. 35.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  36. 36.If 4 kg of rice costs ₹256, how many kg can you buy for ₹640?
  37. 37.Two tanks hold 360 litres and 280 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  38. 38.What is 4/5 of 95 km?
  39. 39.Two tanks hold 40 litres and 140 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 6, 9 or 3.

Answer key

  1. 42
  2. 12
  3. 30
  4. 70
  5. 24
  6. 42
  7. 3
  8. 216
  9. 70
  10. 35
  11. 312
  12. 15
  13. 120
  14. 13.8
  15. 6
  16. 48
  17. 24
  18. 61
  19. 54
  20. 53
  21. 41
  22. 14
  23. 8
  24. 720
  25. 3
  26. 58
  27. 25
  28. 30
  29. 40
  30. 2
  31. 60
  32. 25
  33. 225
  34. 60
  35. 16
  36. 10
  37. 40
  38. 76
  39. 20
  40. 19

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