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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 686 · 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.Find the HCF of 80 and 70.
  2. 2.How many factors does 91 have?
  3. 3.Which of these numbers divides exactly by 6? (a) 4269 (b) 3974 (c) 8454 (d) 6165
  4. 4.11 : 6 = 77 : ?
  5. 5.8/11 × 1/2 =
  6. 6.The ratio of boys to girls in a class is 7 : 8. There are 42 boys. How many girls are there?
  7. 7.Two tanks hold 125 litres and 75 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  8. 8.If 4 cricket balls cost ₹152, how much do 9 cricket balls cost (in ₹)?
  9. 9.A car goes 240 km on 10 litres of petrol. How far can it go on 18 litres (in km)?
  10. 10.Tara scored 8 marks out of 80 in a test. What percentage did Tara score?
  11. 11.What percent of 25 is 6?
  12. 12.Find the third proportional to 2 and 4 (that is, 2 : 4 = 4 : ?).
  13. 13.2/5 of 10 + 8 × 9 =
  14. 14.The HCF of two numbers is 3 and their LCM is 84. One of the numbers is 21. What is the other number?
  15. 15.A hall floor is 200 cm long and 80 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  16. 16.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  17. 17.20% of a number is 98. What is the number?
  18. 18.Which of these numbers divides exactly by 8? (a) 7787 (b) 5064 (c) 5614 (d) 2943
  19. 19.81 ÷ 9 × 8 + 23 =
  20. 20.Two tanks hold 135 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  21. 21.Divide ₹444 between Saanvi and Rahul in the ratio 5 : 7. How much does Rahul get (in ₹)?
  22. 22.Isha scored 12 marks out of 20 in a test. What percentage did Isha score?
  23. 23.What is 1/2 of 32 litres?
  24. 24.3/4 − 3/8 =
  25. 25.The HCF of two numbers is 7 and their LCM is 210. One of the numbers is 35. What is the other number?
  26. 26.10/11 − 2/3 =
  27. 27.Which is closest to 503 + 101 + 505? (a) 1100 (b) 1200 (c) 1000 (d) 1300
  28. 28.7 × (29 − 23) + 21 ÷ 3 =
  29. 29.The ratio of boys to girls in a class is 3 : 2. There are 27 boys. How many girls are there?
  30. 30.Which is closest to 2093 ÷ 29? (a) 70 (b) 35 (c) 700 (d) 140
  31. 31.What percent of 200 is 44?
  32. 32.A hall floor is 200 cm long and 75 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  33. 33.3 painters can paint a school in 7 days. How many days would 7 painters take, working at the same speed?
  34. 34.If 12 notebooks cost ₹540, how much do 8 notebooks cost (in ₹)?
  35. 35.What percent of 500 is 255?
  36. 36.Divide ₹234 between Kavya and Rohan in the ratio 4 : 5. How much does Kavya get (in ₹)?
  37. 37.Which of these numbers divides exactly by 11? (a) 8275 (b) 4224 (c) 5265 (d) 3475
  38. 38.What is the smallest number you must add to 516 so that it divides exactly by 9?
  39. 39.Two tanks hold 75 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.Two tanks hold 160 litres and 180 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?

Answer key

  1. 10
  2. 4
  3. 8454
  4. 42
  5. 4/11
  6. 48
  7. 25
  8. 342
  9. 432
  10. 10
  11. 24
  12. 8
  13. 76
  14. 12
  15. 10
  16. 12
  17. 490
  18. 5064
  19. 95
  20. 45
  21. 259
  22. 60
  23. 16
  24. 3/8
  25. 42
  26. 8/33
  27. 1100
  28. 49
  29. 18
  30. 70
  31. 22
  32. 24
  33. 3
  34. 360
  35. 51
  36. 104
  37. 4224
  38. 6
  39. 25
  40. 20

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