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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 377 · 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.A car goes 115 km on 5 litres of petrol. How far can it go on 19 litres (in km)?
  2. 2.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 6, 8 or 15.
  3. 3.4 : 9 = 28 : ?
  4. 4.Which is closest to 2105 ÷ 29? (a) 35 (b) 70 (c) 140 (d) 700
  5. 5.If 7 kg of rice costs ₹546, how many kg can you buy for ₹390?
  6. 6.4 × (24 − 6) + 15 ÷ 5 =
  7. 7.Find the HCF of 4 and 14.
  8. 8.Find the LCM of 8 and 12.
  9. 9.A hall floor is 210 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  10. 10.40 ÷ 8 × 2 + 9 =
  11. 11.Find the HCF of 24 and 21.
  12. 12.8 : 11 = 56 : ?
  13. 13.Write 3/5 as a percent.
  14. 14.Divide ₹144 between Manav and Kabir in the ratio 1 : 8. How much does Manav get (in ₹)?
  15. 15.A hostel has enough food for 6 students for 18 days. How many days will the same food last for 4 students?
  16. 16.Round 24.14 to one decimal place. =
  17. 17.7.75 + 2.9 =
  18. 18.4 : 15 = 8 : ?
  19. 19.13.2 ÷ 2 =
  20. 20.Which of these numbers divides exactly by 6? (a) 7503 (b) 1851 (c) 3264 (d) 6775
  21. 21.Divide ₹99 between Kabir and Arjun in the ratio 8 : 3. How much does Arjun get (in ₹)?
  22. 22.8.9 × 9 =
  23. 23.77.4 ÷ 9 =
  24. 24.4 painters can paint a school in 23 days. How many days would 2 painters take, working at the same speed?
  25. 25.If 6 notebooks cost ₹282, how much do 8 notebooks cost (in ₹)?
  26. 26.What is the smallest number you must take away from 598 so that it divides exactly by 3?
  27. 27.The HCF of two numbers is 6 and their LCM is 60. One of the numbers is 12. What is the other number?
  28. 28.A car goes 252 km on 12 litres of petrol. How far can it go on 6 litres (in km)?
  29. 29.Which is closest to 594 ÷ 21? (a) 300 (b) 15 (c) 30 (d) 60
  30. 30.The ratio of boys to girls in a class is 1 : 6. There are 10 boys. How many girls are there?
  31. 31.Which is closest to 2402 ÷ 29? (a) 40 (b) 160 (c) 80 (d) 800
  32. 32.How many factors does 90 have?
  33. 33.Find the third proportional to 6 and 12 (that is, 6 : 12 = 12 : ?).
  34. 34.Write 3/25 as a percent.
  35. 35.The HCF of two numbers is 4 and their LCM is 40. One of the numbers is 8. What is the other number?
  36. 36.4 painters can paint a school in 22 days. How many days would 22 painters take, working at the same speed?
  37. 37.What is the smallest number you must take away from 522 so that it divides exactly by 4?
  38. 38.9 painters can paint a school in 22 days. How many days would 22 painters take, working at the same speed?
  39. 39.Three temple bells ring every 6, 18 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.120% of a number is 366. What is the number?

Answer key

  1. 437
  2. 123
  3. 63
  4. 70
  5. 5
  6. 75
  7. 2
  8. 24
  9. 14
  10. 19
  11. 3
  12. 77
  13. 60
  14. 16
  15. 27
  16. 24.1
  17. 10.65
  18. 30
  19. 6.6
  20. 3264
  21. 27
  22. 80.1
  23. 8.6
  24. 46
  25. 376
  26. 1
  27. 30
  28. 126
  29. 30
  30. 60
  31. 80
  32. 12
  33. 24
  34. 12
  35. 20
  36. 4
  37. 2
  38. 9
  39. 90
  40. 305

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