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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 447 · 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.Divide ₹464 between Kabir and Rahul in the ratio 7 : 9. How much does Rahul get (in ₹)?
  2. 2.21 − 21 ÷ 7 × 2 =
  3. 3.60% of a number is 150. What is the number?
  4. 4.Which is closest to 796 × 22? (Round each number first.) (a) 160000 (b) 16000 (c) 1600 (d) 32000
  5. 5.Round 58841 to the nearest ten.
  6. 6.Find the LCM of 15, 5 and 9.
  7. 7.Two tanks hold 175 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  8. 8.14 ÷ 2 × 5 + 17 =
  9. 9.84 ÷ 7 × 4 + 4 =
  10. 10.If 11 mangoes cost ₹44, how much do 3 mangoes cost (in ₹)?
  11. 11.If 3 kg of rice costs ₹165, how many kg can you buy for ₹770?
  12. 12.1/2 of 16 + 6 × 9 =
  13. 13.The HCF of two numbers is 8 and their LCM is 360. One of the numbers is 72. What is the other number?
  14. 14.What is 80% of 105?
  15. 15.Find the third proportional to 3 and 9 (that is, 3 : 9 = 9 : ?).
  16. 16.What is the smallest number you must add to 106 so that it divides exactly by 3?
  17. 17.Rohan scored 12 marks out of 25 in a test. What percentage did Rohan score?
  18. 18.Write 49/50 as a percent.
  19. 19.If 7 kg of rice costs ₹231, how many kg can you buy for ₹165?
  20. 20.Find the third proportional to 6 and 18 (that is, 6 : 18 = 18 : ?).
  21. 21.4/7 of 14 + 2 × 6 =
  22. 22.The HCF of two numbers is 6 and their LCM is 168. One of the numbers is 24. What is the other number?
  23. 23.Find the HCF of 96 and 108.
  24. 24.Meera takes 36 seconds and Kabir takes 30 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.Round 39.22 to one decimal place. =
  26. 26.Rohan takes 80 seconds and Isha takes 36 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?
  27. 27.A car goes 96 km on 12 litres of petrol. How far can it go on 37 litres (in km)?
  28. 28.12.8 ÷ 4 =
  29. 29.A car goes 154 km on 11 litres of petrol. How far can it go on 15 litres (in km)?
  30. 30.Divide ₹539 between Nisha and Tara in the ratio 8 : 3. How much does Tara get (in ₹)?
  31. 31.Divide ₹329 between Zoya and Karan in the ratio 3 : 4. How much does Karan get (in ₹)?
  32. 32.Three temple bells ring every 12, 6 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  33. 33.What is the smallest number you must take away from 788 so that it divides exactly by 13?
  34. 34.If 11 erasers cost ₹66, how much do 8 erasers cost (in ₹)?
  35. 35.What percent of 50 is 9?
  36. 36.If 9 bottles of juice cost ₹405, how much do 18 bottles of juice cost (in ₹)?
  37. 37.Find the LCM of 11, 5 and 2.
  38. 38.If 9 kg of rice costs ₹666, how many kg can you buy for ₹814?
  39. 39.A hall floor is 400 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  40. 40.Find the LCM of 10 and 45.

Answer key

  1. 261
  2. 15
  3. 250
  4. 16000
  5. 58840
  6. 45
  7. 25
  8. 52
  9. 52
  10. 12
  11. 14
  12. 62
  13. 40
  14. 84
  15. 27
  16. 2
  17. 48
  18. 98
  19. 5
  20. 54
  21. 20
  22. 42
  23. 12
  24. 180
  25. 39.2
  26. 720
  27. 296
  28. 3.2
  29. 210
  30. 147
  31. 188
  32. 36
  33. 8
  34. 48
  35. 18
  36. 810
  37. 110
  38. 11
  39. 24
  40. 90

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