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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 370 · 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.Nisha scored 18 marks out of 20 in a test. What percentage did Nisha score?
  2. 2.2 × (17 − 13) + 54 ÷ 6 =
  3. 3.Find the LCM of 14 and 10.
  4. 4.Find the LCM of 4 and 3.
  5. 5.2.6 × 8 =
  6. 6.Two tanks hold 45 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  7. 7.Find the LCM of 3 and 2.
  8. 8.Divide ₹484 between Rohan and Aarav in the ratio 9 : 2. How much does Rohan get (in ₹)?
  9. 9.What is the smallest number you must add to 773 so that it divides exactly by 7?
  10. 10.Find the HCF of 28 and 24.
  11. 11.Find the HCF of 104 and 65.
  12. 12.9.6 × 4 =
  13. 13.Which is closest to 500 + 898 + 605? (a) 1900 (b) 2100 (c) 2200 (d) 2000
  14. 14.The ratio of boys to girls in a class is 9 : 1. There are 81 boys. How many girls are there?
  15. 15.2/3 of 6 + 5 × 8 =
  16. 16.If 10 pens cost ₹170, how much do 11 pens cost (in ₹)?
  17. 17.Which is closest to 703 × 79? (Round each number first.) (a) 112000 (b) 56000 (c) 5600 (d) 560000
  18. 18.44 ÷ 4 × 8 + 23 =
  19. 19.1/2 of 20 + 9 × 4 =
  20. 20.7/12 − 2/6 =
  21. 21.Three temple bells ring every 4, 18 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.The ratio of boys to girls in a class is 5 : 2. There are 35 boys. How many girls are there?
  23. 23.Write 37/50 as a percent.
  24. 24.Round 4634 to the nearest hundred.
  25. 25.7.42 + 1.4 =
  26. 26.Find the HCF of 45 and 18.
  27. 27.15% of a number is 24. What is the number?
  28. 28.(2 + 20) × 4 − 16 =
  29. 29.The HCF of two numbers is 6 and their LCM is 180. One of the numbers is 36. What is the other number?
  30. 30.A car goes 171 km on 9 litres of petrol. How far can it go on 30 litres (in km)?
  31. 31.Find the LCM of 3, 15 and 14.
  32. 32.A hostel has enough food for 11 students for 8 days. How many days will the same food last for 4 students?
  33. 33.(6 + 20) × 4 − 18 =
  34. 34.15% of a number is 18. What is the number?
  35. 35.If 8 kg of rice costs ₹408, how many kg can you buy for ₹714?
  36. 36.Find the HCF of 16 and 6.
  37. 37.The ratio of boys to girls in a class is 5 : 1. There are 10 boys. How many girls are there?
  38. 38.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 9, 3 or 12.
  39. 39.8 : 9 = 16 : ?
  40. 40.6 × (20 − 13) + 35 ÷ 5 =

Answer key

  1. 90
  2. 17
  3. 70
  4. 12
  5. 20.8
  6. 5
  7. 6
  8. 396
  9. 4
  10. 4
  11. 13
  12. 38.4
  13. 2000
  14. 9
  15. 44
  16. 187
  17. 56000
  18. 111
  19. 46
  20. 1/4
  21. 36
  22. 14
  23. 74
  24. 4600
  25. 8.82
  26. 9
  27. 160
  28. 72
  29. 30
  30. 570
  31. 210
  32. 22
  33. 86
  34. 120
  35. 14
  36. 2
  37. 2
  38. 38
  39. 18
  40. 49

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