← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 210 · 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. 1.34 − 27 ÷ 3 × 2 =
  2. 2.Divide ₹403 between Meera and Rahul in the ratio 4 : 9. How much does Meera get (in ₹)?
  3. 3.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  4. 4.10% of a number is 7. What is the number?
  5. 5.What is the smallest number you must take away from 934 so that it divides exactly by 6?
  6. 6.Find the HCF of 10 and 35.
  7. 7.3/6 − 1/12 =
  8. 8.7/9 − 1/8 =
  9. 9.Divide ₹528 between Aarav and Meera in the ratio 7 : 9. How much does Meera get (in ₹)?
  10. 10.If 9 notebooks cost ₹36, how much do 3 notebooks cost (in ₹)?
  11. 11.47 − 45 ÷ 9 × 7 =
  12. 12.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 3, 6 or 8.
  13. 13.Find the LCM of 4, 12 and 13.
  14. 14.How many factors does 50 have?
  15. 15.What is the smallest number you must add to 137 so that it divides exactly by 6?
  16. 16.7.5 ÷ 3 =
  17. 17.Which is closest to 403 + 105 + 704? (a) 1300 (b) 1200 (c) 1400 (d) 1100
  18. 18.Find the HCF of 20 and 16.
  19. 19.The ratio of boys to girls in a class is 8 : 3. There are 56 boys. How many girls are there?
  20. 20.Three temple bells ring every 24, 5 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  21. 21.4 × (13 − 3) + 12 ÷ 2 =
  22. 22.Two tanks hold 60 litres and 150 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  23. 23.How many factors does 28 have?
  24. 24.2 × (25 − 3) + 45 ÷ 9 =
  25. 25.63.7 ÷ 7 =
  26. 26.Three temple bells ring every 5, 4 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.Diya takes 30 seconds and Farhan takes 40 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?
  28. 28.70 − 16 ÷ 2 × 6 =
  29. 29.If 7 kg of rice costs ₹560, how many kg can you buy for ₹400?
  30. 30.26.4 ÷ 3 =
  31. 31.Find the LCM of 5 and 8.
  32. 32.32 ÷ 4 × 2 + 4 =
  33. 33.A hall floor is 320 cm long and 280 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  34. 34.Write 7/10 as a percent.
  35. 35.14.1 ÷ 3 =
  36. 36.26 − 12 ÷ 3 × 4 =
  37. 37.What is the smallest number you must add to 925 so that it divides exactly by 13?
  38. 38.10% of a number is 58. What is the number?
  39. 39.The ratio of boys to girls in a class is 7 : 3. There are 70 boys. How many girls are there?
  40. 40.Which is closest to 404 × 32? (Round each number first.) (a) 120000 (b) 12000 (c) 1200 (d) 24000

Answer key

  1. 16
  2. 124
  3. 24
  4. 70
  5. 4
  6. 5
  7. 5/12
  8. 47/72
  9. 297
  10. 12
  11. 12
  12. 26
  13. 156
  14. 6
  15. 1
  16. 2.5
  17. 1200
  18. 4
  19. 21
  20. 120
  21. 46
  22. 30
  23. 6
  24. 49
  25. 9.1
  26. 60
  27. 120
  28. 22
  29. 5
  30. 8.8
  31. 40
  32. 20
  33. 56
  34. 70
  35. 4.7
  36. 10
  37. 11
  38. 580
  39. 30
  40. 12000

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