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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 528 · 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 54 km on 6 litres of petrol. How far can it go on 10 litres (in km)?
  2. 2.Find the LCM of 5, 6 and 8.
  3. 3.Three temple bells ring every 24, 5 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.3.27 + 2.9 =
  5. 5.Find the LCM of 7 and 4.
  6. 6.A hostel has enough food for 5 students for 26 days. How many days will the same food last for 13 students?
  7. 7.If 2 kg of rice costs ₹114, how many kg can you buy for ₹855?
  8. 8.(8 + 8) × 2 − 5 =
  9. 9.What is 2/3 of 21 km?
  10. 10.Find the HCF of 15 and 25.
  11. 11.The HCF of two numbers is 2 and their LCM is 30. One of the numbers is 10. What is the other number?
  12. 12.What is the smallest number you must add to 287 so that it divides exactly by 4?
  13. 13.The ratio of boys to girls in a class is 4 : 9. There are 20 boys. How many girls are there?
  14. 14.Find the LCM of 5, 10 and 3.
  15. 15.Round 54.44 to one decimal place. =
  16. 16.Find the LCM of 4, 6 and 7.
  17. 17.Find the LCM of 15, 10 and 7.
  18. 18.18 + 7 × 3 − 8 =
  19. 19.40% of a number is 130. What is the number?
  20. 20.What is the smallest number you must add to 269 so that it divides exactly by 8?
  21. 21.The ratio of boys to girls in a class is 5 : 8. There are 50 boys. How many girls are there?
  22. 22.Meera takes 54 seconds and Sneha takes 60 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?
  23. 23.How many factors does 28 have?
  24. 24.2/3 × 5/9 =
  25. 25.What is the smallest number you must take away from 895 so that it divides exactly by 13?
  26. 26.What is the smallest number you must add to 114 so that it divides exactly by 13?
  27. 27.Find the LCM of 2 and 5.
  28. 28.What is 60% of 560?
  29. 29.If 5 erasers cost ₹180, how much do 18 erasers cost (in ₹)?
  30. 30.A hall floor is 280 cm long and 240 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  31. 31.Write 7/25 as a percent.
  32. 32.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 3, 5 or 10.
  33. 33.Find the LCM of 5, 3 and 8.
  34. 34.What is the smallest number you must take away from 994 so that it divides exactly by 12?
  35. 35.6 × (25 − 24) + 36 ÷ 3 =
  36. 36.The HCF of two numbers is 2 and their LCM is 30. One of the numbers is 6. What is the other number?
  37. 37.6 : 4 = 18 : ?
  38. 38.(7 + 2) × 8 − 24 =
  39. 39.Divide ₹473 between Kabir and Vivaan in the ratio 7 : 4. How much does Vivaan get (in ₹)?
  40. 40.Divide ₹392 between Saanvi and Diya in the ratio 1 : 6. How much does Diya get (in ₹)?

Answer key

  1. 90
  2. 120
  3. 120
  4. 6.17
  5. 28
  6. 10
  7. 15
  8. 27
  9. 14
  10. 5
  11. 6
  12. 1
  13. 45
  14. 30
  15. 54.4
  16. 84
  17. 210
  18. 31
  19. 325
  20. 3
  21. 80
  22. 540
  23. 6
  24. 10/27
  25. 11
  26. 3
  27. 10
  28. 336
  29. 648
  30. 42
  31. 28
  32. 31
  33. 120
  34. 10
  35. 18
  36. 10
  37. 12
  38. 48
  39. 172
  40. 336

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