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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 354 · 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.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
  2. 2.6 painters can paint a school in 24 days. How many days would 16 painters take, working at the same speed?
  3. 3.How many factors does 26 have?
  4. 4.Which of these numbers divides exactly by 3? (a) 5786 (b) 8009 (c) 1676 (d) 3858
  5. 5.1/9 + 4/10 =
  6. 6.Find the LCM of 4, 2 and 10.
  7. 7.(9 + 3) × 7 − 14 =
  8. 8.Find the LCM of 15, 2 and 9.
  9. 9.1/3 of 18 + 6 × 3 =
  10. 10.Find the LCM of 28 and 20.
  11. 11.47 + 12 × 6 − 5 =
  12. 12.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  13. 13.Round 52.91 to one decimal place. =
  14. 14.1/8 × 3/6 =
  15. 15.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  16. 16.Round 90894 to the nearest hundred.
  17. 17.Write 4/25 as a percent.
  18. 18.If 8 kites cost ₹144, how much do 11 kites cost (in ₹)?
  19. 19.2/3 × 5/11 =
  20. 20.Two tanks hold 35 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  21. 21.Which is closest to 894 ÷ 29? (a) 30 (b) 60 (c) 300 (d) 15
  22. 22.Find the LCM of 10 and 35.
  23. 23.The HCF of two numbers is 3 and their LCM is 30. One of the numbers is 6. What is the other number?
  24. 24.What is the smallest number you must add to 955 so that it divides exactly by 8?
  25. 25.2/4 × 4/10 =
  26. 26.Round 9094 to the nearest ten.
  27. 27.Divide ₹605 between Ishaan and Karan in the ratio 5 : 6. How much does Ishaan get (in ₹)?
  28. 28.Which is closest to 1993 ÷ 39? (a) 500 (b) 25 (c) 100 (d) 50
  29. 29.A car goes 100 km on 5 litres of petrol. How far can it go on 25 litres (in km)?
  30. 30.Three temple bells ring every 4, 5 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  31. 31.Aarav scored 10 marks out of 20 in a test. What percentage did Aarav score?
  32. 32.Find the LCM of 9, 6 and 2.
  33. 33.The ratio of boys to girls in a class is 1 : 4. There are 8 boys. How many girls are there?
  34. 34.The ratio of boys to girls in a class is 3 : 7. There are 27 boys. How many girls are there?
  35. 35.Find the LCM of 12 and 28.
  36. 36.Find the HCF of 54 and 45.
  37. 37.2/5 × 7/8 =
  38. 38.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 12, 15 or 9.
  39. 39.A hostel has enough food for 12 students for 29 days. How many days will the same food last for 6 students?
  40. 40.If 4 kg of rice costs ₹164, how many kg can you buy for ₹451?

Answer key

  1. 225
  2. 9
  3. 4
  4. 3858
  5. 23/45
  6. 20
  7. 70
  8. 90
  9. 24
  10. 140
  11. 114
  12. 100
  13. 52.9
  14. 1/16
  15. 18
  16. 90900
  17. 16
  18. 198
  19. 10/33
  20. 5
  21. 30
  22. 70
  23. 15
  24. 5
  25. 1/5
  26. 9090
  27. 275
  28. 50
  29. 500
  30. 20
  31. 50
  32. 18
  33. 32
  34. 63
  35. 84
  36. 9
  37. 7/20
  38. 182
  39. 58
  40. 11

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