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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 903 · 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. 1.2/5 of 15 + 9 × 4 =
  2. 2.What is the smallest number you must add to 554 so that it divides exactly by 13?
  3. 3.Three temple bells ring every 4, 15 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.Divide ₹150 between Rohan and Meera in the ratio 2 : 1. How much does Rohan get (in ₹)?
  5. 5.Find the LCM of 12, 9 and 6.
  6. 6.If 9 notebooks cost ₹396, how much do 18 notebooks cost (in ₹)?
  7. 7.Which is closest to 2491 ÷ 51? (a) 100 (b) 25 (c) 50 (d) 500
  8. 8.Two tanks hold 360 litres and 225 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  9. 9.2 : 11 = 6 : ?
  10. 10.A car goes 63 km on 7 litres of petrol. How far can it go on 29 litres (in km)?
  11. 11.Which is closest to 201 × 28? (Round each number first.) (a) 60000 (b) 12000 (c) 600 (d) 6000
  12. 12.What is the smallest number you must take away from 596 so that it divides exactly by 6?
  13. 13.7/10 × 4/6 =
  14. 14.19 − 10 ÷ 2 × 2 =
  15. 15.Three temple bells ring every 30, 9 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  16. 16.5 painters can paint a school in 23 days. How many days would 23 painters take, working at the same speed?
  17. 17.Round 5719 to the nearest ten.
  18. 18.Find the LCM of 8, 2 and 11.
  19. 19.3.8 × 2 =
  20. 20.1/4 + 8/12 =
  21. 21.42 ÷ 6 × 6 + 7 =
  22. 22.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 15, 3 or 6.
  23. 23.What percent of 200 is 104?
  24. 24.What is 7/10 of 100 kg?
  25. 25.Which is closest to 606 ÷ 29? (a) 20 (b) 200 (c) 40 (d) 10
  26. 26.A hall floor is 280 cm long and 160 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  27. 27.A hostel has enough food for 3 students for 6 days. How many days will the same food last for 9 students?
  28. 28.Find the LCM of 7 and 8.
  29. 29.What is 2/3 of ₹54?
  30. 30.Round 11.84 to one decimal place. =
  31. 31.A hostel has enough food for 12 students for 9 days. How many days will the same food last for 2 students?
  32. 32.The ratio of boys to girls in a class is 9 : 1. There are 72 boys. How many girls are there?
  33. 33.What is the smallest number you must add to 765 so that it divides exactly by 12?
  34. 34.47 + 6 × 7 − 46 =
  35. 35.If 3 pens cost ₹99, how much do 15 pens cost (in ₹)?
  36. 36.15% of a number is 54. What is the number?
  37. 37.30% of a number is 135. What is the number?
  38. 38.What is 20% of 415?
  39. 39.3/5 − 3/6 =
  40. 40.The ratio of boys to girls in a class is 2 : 1. There are 8 boys. How many girls are there?

Answer key

  1. 42
  2. 5
  3. 60
  4. 100
  5. 36
  6. 792
  7. 50
  8. 45
  9. 33
  10. 261
  11. 6000
  12. 2
  13. 7/15
  14. 9
  15. 90
  16. 5
  17. 5720
  18. 88
  19. 7.6
  20. 11/12
  21. 49
  22. 31
  23. 52
  24. 70
  25. 20
  26. 28
  27. 2
  28. 56
  29. 36
  30. 11.8
  31. 54
  32. 8
  33. 3
  34. 43
  35. 495
  36. 360
  37. 450
  38. 83
  39. 1/10
  40. 4

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