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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 711 · 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.Which of these numbers divides exactly by 8? (a) 6217 (b) 4080 (c) 9903 (d) 8990
  2. 2.69 − 48 ÷ 8 × 5 =
  3. 3.Find the LCM of 4, 12 and 10.
  4. 4.108 ÷ 9 × 6 + 5 =
  5. 5.What is 1/3 of 42 km?
  6. 6.39 + 2 × 4 − 27 =
  7. 7.30 + 7 × 12 − 14 =
  8. 8.If 5 erasers cost ₹150, how much do 13 erasers cost (in ₹)?
  9. 9.What is 7/8 of 72 litres?
  10. 10.What is 25% of 276?
  11. 11.Write 29/50 as a percent.
  12. 12.7.9 × 3 =
  13. 13.The ratio of boys to girls in a class is 9 : 4. There are 18 boys. How many girls are there?
  14. 14.Which is closest to 404 + 503 + 696? (a) 1700 (b) 1600 (c) 1500 (d) 1800
  15. 15.The ratio of boys to girls in a class is 5 : 4. There are 20 boys. How many girls are there?
  16. 16.A hostel has enough food for 9 students for 26 days. How many days will the same food last for 18 students?
  17. 17.If 6 bottles of juice cost ₹216, how much do 12 bottles of juice cost (in ₹)?
  18. 18.If 4 cricket balls cost ₹116, how much do 11 cricket balls cost (in ₹)?
  19. 19.What is the smallest number you must add to 740 so that it divides exactly by 6?
  20. 20.What is 30% of 290?
  21. 21.A car goes 38 km on 2 litres of petrol. How far can it go on 3 litres (in km)?
  22. 22.What is 150% of 48?
  23. 23.Which is closest to 3999 ÷ 51? (a) 40 (b) 160 (c) 80 (d) 800
  24. 24.Which is closest to 1994 ÷ 51? (a) 400 (b) 20 (c) 80 (d) 40
  25. 25.If 11 mangoes cost ₹660, how much do 14 mangoes cost (in ₹)?
  26. 26.What is the smallest number you must take away from 116 so that it divides exactly by 12?
  27. 27.4 × (26 − 1) + 60 ÷ 6 =
  28. 28.Find the LCM of 10, 14 and 6.
  29. 29.How many factors does 26 have?
  30. 30.The HCF of two numbers is 3 and their LCM is 126. One of the numbers is 18. What is the other number?
  31. 31.Round 13.78 to one decimal place. =
  32. 32.What is 75% of 32?
  33. 33.7 painters can paint a school in 14 days. How many days would 14 painters take, working at the same speed?
  34. 34.A car goes 120 km on 6 litres of petrol. How far can it go on 25 litres (in km)?
  35. 35.36 ÷ 6 × 2 + 16 =
  36. 36.1/9 of 99 + 3 × 7 =
  37. 37.A car goes 30 km on 3 litres of petrol. How far can it go on 15 litres (in km)?
  38. 38.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 15, 4 or 12.
  39. 39.What is 1/2 of 44 kg?
  40. 40.A hall floor is 175 cm long and 125 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?

Answer key

  1. 4080
  2. 39
  3. 60
  4. 77
  5. 14
  6. 20
  7. 100
  8. 390
  9. 63
  10. 69
  11. 58
  12. 23.7
  13. 8
  14. 1600
  15. 16
  16. 13
  17. 432
  18. 319
  19. 4
  20. 87
  21. 57
  22. 72
  23. 80
  24. 40
  25. 840
  26. 8
  27. 110
  28. 210
  29. 4
  30. 21
  31. 13.8
  32. 24
  33. 7
  34. 500
  35. 28
  36. 32
  37. 150
  38. 63
  39. 22
  40. 35

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