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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 926 · 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 1/2 of 14 km?
  2. 2.29 + 2 × 7 − 28 =
  3. 3.Three temple bells ring every 15, 6 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.A car goes 128 km on 8 litres of petrol. How far can it go on 23 litres (in km)?
  5. 5.If 6 erasers cost ₹186, how much do 7 erasers cost (in ₹)?
  6. 6.Find the LCM of 10 and 4.
  7. 7.Which is closest to 298 + 902 + 302? (a) 1500 (b) 1700 (c) 1400 (d) 1600
  8. 8.What is 20% of 95?
  9. 9.What percent of 500 is 430?
  10. 10.9.7 × 4 =
  11. 11.Two tanks hold 50 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  12. 12.50% of a number is 142. What is the number?
  13. 13.42 − 12 ÷ 4 × 7 =
  14. 14.The HCF of two numbers is 3 and their LCM is 36. One of the numbers is 12. What is the other number?
  15. 15.The ratio of boys to girls in a class is 5 : 8. There are 20 boys. How many girls are there?
  16. 16.20% of a number is 8. What is the number?
  17. 17.A hall floor is 100 cm long and 40 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  18. 18.Which of these numbers divides exactly by 6? (a) 3930 (b) 3622 (c) 4345 (d) 3669
  19. 19.4.17 + 6.3 =
  20. 20.The ratio of boys to girls in a class is 5 : 7. There are 15 boys. How many girls are there?
  21. 21.The ratio of boys to girls in a class is 5 : 2. There are 50 boys. How many girls are there?
  22. 22.What percent of 50 is 8?
  23. 23.A car goes 105 km on 5 litres of petrol. How far can it go on 30 litres (in km)?
  24. 24.36 − 54 ÷ 9 × 4 =
  25. 25.Diya scored 14 marks out of 40 in a test. What percentage did Diya score?
  26. 26.Which is closest to 1195 ÷ 21? (a) 120 (b) 30 (c) 60 (d) 600
  27. 27.Three temple bells ring every 12, 8 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  28. 28.If 7 notebooks cost ₹357, how much do 4 notebooks cost (in ₹)?
  29. 29.Which of these numbers divides exactly by 3? (a) 2167 (b) 2694 (c) 3367 (d) 2714
  30. 30.If 3 pencil boxes cost ₹147, how much do 16 pencil boxes cost (in ₹)?
  31. 31.If 9 bottles of juice cost ₹108, how much do 13 bottles of juice cost (in ₹)?
  32. 32.Aditya scored 29 marks out of 50 in a test. What percentage did Aditya score?
  33. 33.Which is closest to 204 × 89? (Round each number first.) (a) 180000 (b) 36000 (c) 18000 (d) 1800
  34. 34.Divide ₹147 between Farhan and Kabir in the ratio 2 : 1. How much does Kabir get (in ₹)?
  35. 35.What is the smallest number you must take away from 550 so that it divides exactly by 9?
  36. 36.9 : 10 = 36 : ?
  37. 37.9 : 2 = 27 : ?
  38. 38.1.3 × 3 =
  39. 39.The HCF of two numbers is 3 and their LCM is 126. One of the numbers is 18. What is the other number?
  40. 40.The ratio of boys to girls in a class is 4 : 7. There are 16 boys. How many girls are there?

Answer key

  1. 7
  2. 15
  3. 60
  4. 368
  5. 217
  6. 20
  7. 1500
  8. 19
  9. 86
  10. 38.8
  11. 10
  12. 284
  13. 21
  14. 9
  15. 32
  16. 40
  17. 10
  18. 3930
  19. 10.47
  20. 21
  21. 20
  22. 16
  23. 630
  24. 12
  25. 35
  26. 60
  27. 24
  28. 204
  29. 2694
  30. 784
  31. 156
  32. 58
  33. 18000
  34. 49
  35. 1
  36. 40
  37. 6
  38. 3.9
  39. 21
  40. 28

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