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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 647 · 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.Sneha takes 36 seconds and Kabir 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?
  2. 2.Divide ₹414 between Pooja and Aarav in the ratio 8 : 1. How much does Pooja get (in ₹)?
  3. 3.What is 1/3 of 24 students?
  4. 4.28 − 48 ÷ 6 × 3 =
  5. 5.A hostel has enough food for 10 students for 17 days. How many days will the same food last for 5 students?
  6. 6.If 3 notebooks cost ₹39, how much do 14 notebooks cost (in ₹)?
  7. 7.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 10, 8 or 5.
  8. 8.What is the smallest number you must add to 222 so that it divides exactly by 9?
  9. 9.A car goes 64 km on 4 litres of petrol. How far can it go on 16 litres (in km)?
  10. 10.The ratio of boys to girls in a class is 3 : 2. There are 21 boys. How many girls are there?
  11. 11.If 2 pens cost ₹40, how much do 15 pens cost (in ₹)?
  12. 12.Which is closest to 605 + 403 + 197? (a) 1100 (b) 1400 (c) 1300 (d) 1200
  13. 13.Three temple bells ring every 5, 20 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  14. 14.8.1 × 5 =
  15. 15.Round 69.41 to one decimal place. =
  16. 16.What is the smallest number you must add to 168 so that it divides exactly by 13?
  17. 17.What is 15% of 160?
  18. 18.10 painters can paint a school in 10 days. How many days would 2 painters take, working at the same speed?
  19. 19.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 4, 6 or 15.
  20. 20.5 painters can paint a school in 16 days. How many days would 4 painters take, working at the same speed?
  21. 21.Find the HCF of 108 and 60.
  22. 22.7 : 5 = 63 : ?
  23. 23.46.8 ÷ 9 =
  24. 24.(8 + 13) × 7 − 2 =
  25. 25.Find the LCM of 5 and 3.
  26. 26.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 4, 12 or 6.
  27. 27.The HCF of two numbers is 3 and their LCM is 45. One of the numbers is 9. What is the other number?
  28. 28.Find the LCM of 42 and 12.
  29. 29.33 ÷ 6 =
  30. 30.Round 42402 to the nearest ten.
  31. 31.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 3, 4 or 12.
  32. 32.3/5 × 1/2 =
  33. 33.What percent of 25 is 1?
  34. 34.1.99 + 1.4 =
  35. 35.2.8 × 7 =
  36. 36.Round 38158 to the nearest ten.
  37. 37.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 5, 9 or 6.
  38. 38.15 + 2 × 4 − 15 =
  39. 39.A car goes 18 km on 2 litres of petrol. How far can it go on 39 litres (in km)?
  40. 40.The HCF of two numbers is 7 and their LCM is 315. One of the numbers is 63. What is the other number?

Answer key

  1. 180
  2. 368
  3. 8
  4. 4
  5. 34
  6. 182
  7. 42
  8. 3
  9. 256
  10. 14
  11. 300
  12. 1200
  13. 60
  14. 40.5
  15. 69.4
  16. 1
  17. 24
  18. 50
  19. 63
  20. 20
  21. 12
  22. 45
  23. 5.2
  24. 145
  25. 15
  26. 14
  27. 15
  28. 84
  29. 5.5
  30. 42400
  31. 13
  32. 3/10
  33. 4
  34. 3.39
  35. 19.6
  36. 38160
  37. 92
  38. 8
  39. 351
  40. 35

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