← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 978 · 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.The HCF of two numbers is 6 and their LCM is 126. One of the numbers is 18. What is the other number?
  2. 2.27 ÷ 3 × 2 + 3 =
  3. 3.36 − 24 ÷ 3 × 3 =
  4. 4.What is the smallest number you must add to 945 so that it divides exactly by 12?
  5. 5.2.61 + 8.6 =
  6. 6.If 8 kg of rice costs ₹568, how many kg can you buy for ₹213?
  7. 7.9 × (30 − 21) + 8 ÷ 4 =
  8. 8.What is 1/7 of 91 kg?
  9. 9.Find the HCF of 50 and 40.
  10. 10.If 6 kg of rice costs ₹480, how many kg can you buy for ₹160?
  11. 11.A car goes 88 km on 11 litres of petrol. How far can it go on 23 litres (in km)?
  12. 12.26 ÷ 5 =
  13. 13.Write 49/50 as a percent.
  14. 14.Divide ₹171 between Isha and Priya in the ratio 1 : 8. How much does Isha get (in ₹)?
  15. 15.7 : 5 = 35 : ?
  16. 16.What percent of 400 is 104?
  17. 17.1/2 of 6 + 6 × 8 =
  18. 18.Arjun takes 54 seconds and Dev 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?
  19. 19.Find the LCM of 10, 3 and 5.
  20. 20.What is the smallest number you must add to 484 so that it divides exactly by 6?
  21. 21.Find the third proportional to 8 and 40 (that is, 8 : 40 = 40 : ?).
  22. 22.Round 80.49 to one decimal place. =
  23. 23.Divide ₹345 between Vivaan and Farhan in the ratio 7 : 8. How much does Farhan get (in ₹)?
  24. 24.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  25. 25.1.3 × 7 =
  26. 26.Divide ₹287 between Kabir and Dev in the ratio 3 : 4. How much does Dev get (in ₹)?
  27. 27.Which is closest to 3205 ÷ 39? (a) 40 (b) 800 (c) 160 (d) 80
  28. 28.2 painters can paint a school in 5 days. How many days would 5 painters take, working at the same speed?
  29. 29.1/2 − 1/5 =
  30. 30.32 ÷ 4 × 4 + 23 =
  31. 31.Find the HCF of 24 and 56.
  32. 32.What is the smallest number you must add to 761 so that it divides exactly by 9?
  33. 33.Write 39/50 as a percent.
  34. 34.Which is closest to 699 × 29? (Round each number first.) (a) 21000 (b) 2100 (c) 210000 (d) 42000
  35. 35.If 7 kg of rice costs ₹476, how many kg can you buy for ₹952?
  36. 36.If 4 cricket balls cost ₹108, how much do 14 cricket balls cost (in ₹)?
  37. 37.Which is closest to 897 × 30? (Round each number first.) (a) 2700 (b) 27000 (c) 270000 (d) 54000
  38. 38.The HCF of two numbers is 4 and their LCM is 180. One of the numbers is 36. What is the other number?
  39. 39.Two tanks hold 300 litres and 250 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.Write 9/10 as a percent.

Answer key

  1. 42
  2. 21
  3. 12
  4. 3
  5. 11.21
  6. 3
  7. 83
  8. 13
  9. 10
  10. 2
  11. 184
  12. 5.2
  13. 98
  14. 19
  15. 25
  16. 26
  17. 51
  18. 270
  19. 30
  20. 2
  21. 200
  22. 80.5
  23. 184
  24. 54
  25. 9.1
  26. 164
  27. 80
  28. 2
  29. 3/10
  30. 55
  31. 8
  32. 4
  33. 78
  34. 21000
  35. 14
  36. 378
  37. 27000
  38. 20
  39. 50
  40. 90

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