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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 95 · 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 hostel has enough food for 3 students for 14 days. How many days will the same food last for 21 students?
  2. 2.If 6 bottles of juice cost ₹288, how much do 9 bottles of juice cost (in ₹)?
  3. 3.8.6 × 8 =
  4. 4.If 5 pencil boxes cost ₹200, how much do 6 pencil boxes cost (in ₹)?
  5. 5.Which is closest to 2801 ÷ 39? (a) 70 (b) 700 (c) 35 (d) 140
  6. 6.A hostel has enough food for 9 students for 16 days. How many days will the same food last for 4 students?
  7. 7.Which is closest to 604 × 50? (Round each number first.) (a) 30000 (b) 3000 (c) 60000 (d) 300000
  8. 8.Three temple bells ring every 30, 12 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.Rohan takes 80 seconds and Aarav 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?
  10. 10.What is 1/2 of ₹8?
  11. 11.How many factors does 58 have?
  12. 12.Find the HCF of 48 and 36.
  13. 13.5/10 + 3/11 =
  14. 14.Two tanks hold 10 litres and 45 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  15. 15.Round 33.33 to one decimal place. =
  16. 16.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 9, 8 or 4.
  17. 17.Find the HCF of 56 and 21.
  18. 18.Write 19/20 as a percent.
  19. 19.How many factors does 92 have?
  20. 20.If 4 kg of rice costs ₹128, how many kg can you buy for ₹96?
  21. 21.What percent of 200 is 168?
  22. 22.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 4, 6 or 12.
  23. 23.7/9 × 5/12 =
  24. 24.1/2 of 16 + 7 × 6 =
  25. 25.How many factors does 16 have?
  26. 26.If 12 mangoes cost ₹144, how much do 6 mangoes cost (in ₹)?
  27. 27.What is the smallest number you must take away from 733 so that it divides exactly by 6?
  28. 28.5.61 + 1.1 =
  29. 29.What is the smallest number you must add to 379 so that it divides exactly by 4?
  30. 30.16.6 ÷ 2 =
  31. 31.A car goes 165 km on 11 litres of petrol. How far can it go on 27 litres (in km)?
  32. 32.21 + 9 × 2 − 12 =
  33. 33.What is 1/5 of 120 students?
  34. 34.A hall floor is 210 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  35. 35.Find the LCM of 9, 3 and 8.
  36. 36.Find the HCF of 45 and 81.
  37. 37.Round 10.58 to one decimal place. =
  38. 38.Find the HCF of 72 and 27.
  39. 39.5.28 + 3.9 =
  40. 40.Three temple bells ring every 18, 6 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?

Answer key

  1. 2
  2. 432
  3. 68.8
  4. 240
  5. 70
  6. 36
  7. 30000
  8. 60
  9. 720
  10. 4
  11. 4
  12. 12
  13. 17/22
  14. 5
  15. 33.3
  16. 74
  17. 7
  18. 95
  19. 6
  20. 3
  21. 84
  22. 13
  23. 35/108
  24. 50
  25. 5
  26. 72
  27. 1
  28. 6.71
  29. 1
  30. 8.3
  31. 405
  32. 27
  33. 24
  34. 21
  35. 72
  36. 9
  37. 10.6
  38. 9
  39. 9.18
  40. 90

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