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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 378 · 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.What is 12% of 225?
  2. 2.A hostel has enough food for 4 students for 24 days. How many days will the same food last for 3 students?
  3. 3.15% of a number is 84. What is the number?
  4. 4.Find the LCM of 2, 6 and 7.
  5. 5.The ratio of boys to girls in a class is 3 : 1. There are 18 boys. How many girls are there?
  6. 6.31 − 6 ÷ 3 × 8 =
  7. 7.30 ÷ 6 × 8 + 23 =
  8. 8.Which is closest to 1593 ÷ 41? (a) 80 (b) 40 (c) 20 (d) 400
  9. 9.5/8 + 1/9 =
  10. 10.If 7 kg of rice costs ₹567, how many kg can you buy for ₹486?
  11. 11.If 6 kg of rice costs ₹126, how many kg can you buy for ₹252?
  12. 12.29 + 3 × 2 − 17 =
  13. 13.Divide ₹342 between Pooja and Dev in the ratio 1 : 8. How much does Dev get (in ₹)?
  14. 14.Which is closest to 902 + 199 + 201? (a) 1400 (b) 1500 (c) 1300 (d) 1200
  15. 15.3/5 + 6/7 =
  16. 16.A hall floor is 120 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  17. 17.A car goes 70 km on 7 litres of petrol. How far can it go on 32 litres (in km)?
  18. 18.If 7 bottles of juice cost ₹357, how much do 3 bottles of juice cost (in ₹)?
  19. 19.3 : 2 = 12 : ?
  20. 20.Find the smallest number bigger than 8 that leaves a remainder of 2 when divided by 6, 8 or 3.
  21. 21.5/8 − 1/11 =
  22. 22.Find the third proportional to 4 and 8 (that is, 4 : 8 = 8 : ?).
  23. 23.Three temple bells ring every 8, 15 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  24. 24.A hall floor is 150 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  25. 25.Find the third proportional to 7 and 35 (that is, 7 : 35 = 35 : ?).
  26. 26.A hall floor is 315 cm long and 135 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  27. 27.Three temple bells ring every 6, 4 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  28. 28.Two tanks hold 10 litres and 35 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.The ratio of boys to girls in a class is 7 : 4. There are 49 boys. How many girls are there?
  30. 30.3/4 + 1/3 =
  31. 31.Find the HCF of 14 and 12.
  32. 32.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 9, 15 or 3.
  33. 33.Find the LCM of 11, 2 and 10.
  34. 34.A hall floor is 280 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  35. 35.Which of these numbers divides exactly by 8? (a) 8972 (b) 1824 (c) 3135 (d) 2340
  36. 36.What percent of 250 is 150?
  37. 37.Round 47.93 to one decimal place. =
  38. 38.Round 96999 to the nearest thousand.
  39. 39.Three temple bells ring every 18, 4 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.(20 + 18) × 9 − 3 =

Answer key

  1. 27
  2. 32
  3. 560
  4. 42
  5. 6
  6. 15
  7. 63
  8. 40
  9. 53/72
  10. 6
  11. 12
  12. 18
  13. 304
  14. 1300
  15. 51/35
  16. 30
  17. 320
  18. 153
  19. 8
  20. 26
  21. 47/88
  22. 16
  23. 120
  24. 6
  25. 175
  26. 21
  27. 60
  28. 5
  29. 28
  30. 13/12
  31. 2
  32. 47
  33. 110
  34. 14
  35. 1824
  36. 60
  37. 47.9
  38. 97000
  39. 72
  40. 339

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