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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 414 · 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 car goes 104 km on 8 litres of petrol. How far can it go on 33 litres (in km)?
  2. 2.What is the smallest number you must take away from 547 so that it divides exactly by 13?
  3. 3.68 − 72 ÷ 9 × 5 =
  4. 4.44 − 8 ÷ 2 × 6 =
  5. 5.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 4, 10 or 12.
  6. 6.A hall floor is 135 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  7. 7.25 ÷ 5 × 8 + 23 =
  8. 8.How many factors does 81 have?
  9. 9.Which of these numbers divides exactly by 8? (a) 4440 (b) 7222 (c) 2563 (d) 9834
  10. 10.The HCF of two numbers is 3 and their LCM is 42. One of the numbers is 6. What is the other number?
  11. 11.10 : 14 = 50 : ?
  12. 12.What is the smallest number you must take away from 998 so that it divides exactly by 3?
  13. 13.The HCF of two numbers is 8 and their LCM is 96. One of the numbers is 24. What is the other number?
  14. 14.2 : 11 = 12 : ?
  15. 15.If 2 kg of rice costs ₹138, how many kg can you buy for ₹345?
  16. 16.Round 10.51 to one decimal place. =
  17. 17.Three temple bells ring every 8, 20 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  18. 18.What is the smallest number you must add to 309 so that it divides exactly by 13?
  19. 19.The ratio of boys to girls in a class is 9 : 2. There are 36 boys. How many girls are there?
  20. 20.Two tanks hold 105 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  21. 21.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 6, 4 or 12.
  22. 22.1/9 of 36 + 2 × 6 =
  23. 23.If 12 pencil boxes cost ₹336, how much do 16 pencil boxes cost (in ₹)?
  24. 24.73 − 49 ÷ 7 × 9 =
  25. 25.A hostel has enough food for 8 students for 19 days. How many days will the same food last for 4 students?
  26. 26.A hostel has enough food for 3 students for 22 days. How many days will the same food last for 2 students?
  27. 27.Meera scored 2 marks out of 20 in a test. What percentage did Meera score?
  28. 28.1/2 + 1/5 =
  29. 29.Find the LCM of 11, 7 and 3.
  30. 30.The HCF of two numbers is 3 and their LCM is 216. One of the numbers is 24. What is the other number?
  31. 31.The HCF of two numbers is 2 and their LCM is 70. One of the numbers is 14. What is the other number?
  32. 32.What is 10% of 470?
  33. 33.3 × (29 − 12) + 24 ÷ 3 =
  34. 34.Three temple bells ring every 10, 6 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  35. 35.Find the LCM of 54 and 12.
  36. 36.Find the LCM of 8 and 14.
  37. 37.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 12, 3 or 5.
  38. 38.Which is closest to 795 + 295 + 404? (a) 1600 (b) 1700 (c) 1400 (d) 1500
  39. 39.What is the smallest number you must add to 370 so that it divides exactly by 9?
  40. 40.1/2 − 1/4 =

Answer key

  1. 429
  2. 1
  3. 28
  4. 20
  5. 62
  6. 6
  7. 63
  8. 5
  9. 4440
  10. 21
  11. 70
  12. 2
  13. 32
  14. 66
  15. 5
  16. 10.5
  17. 40
  18. 3
  19. 8
  20. 15
  21. 14
  22. 16
  23. 448
  24. 10
  25. 38
  26. 33
  27. 10
  28. 7/10
  29. 231
  30. 27
  31. 10
  32. 47
  33. 59
  34. 30
  35. 108
  36. 56
  37. 62
  38. 1500
  39. 8
  40. 1/4

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