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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 206 · 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.Divide ₹54 between Ishaan and Nisha in the ratio 1 : 5. How much does Ishaan get (in ₹)?
  2. 2.If 5 pens cost ₹165, how much do 20 pens cost (in ₹)?
  3. 3.What is the smallest number you must add to 348 so that it divides exactly by 13?
  4. 4.1/7 + 3/5 =
  5. 5.5/10 + 1/3 =
  6. 6.Write 21/25 as a percent.
  7. 7.Three temple bells ring every 20, 15 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  8. 8.Priya scored 21 marks out of 25 in a test. What percentage did Priya score?
  9. 9.Find the HCF of 21 and 28.
  10. 10.120% of a number is 450. What is the number?
  11. 11.What is the smallest number you must add to 189 so that it divides exactly by 12?
  12. 12.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 3, 15 or 5.
  13. 13.Sneha scored 14 marks out of 40 in a test. What percentage did Sneha score?
  14. 14.What is the smallest number you must take away from 970 so that it divides exactly by 6?
  15. 15.3 : 10 = 18 : ?
  16. 16.The HCF of two numbers is 4 and their LCM is 48. One of the numbers is 16. What is the other number?
  17. 17.What is 8/9 of 216 students?
  18. 18.How many factors does 19 have?
  19. 19.Find the HCF of 52 and 117.
  20. 20.A car goes 132 km on 12 litres of petrol. How far can it go on 9 litres (in km)?
  21. 21.Find the LCM of 12, 6 and 8.
  22. 22.6 × (28 − 13) + 55 ÷ 5 =
  23. 23.80% of a number is 316. What is the number?
  24. 24.Find the LCM of 12, 14 and 7.
  25. 25.Which is closest to 603 × 89? (Round each number first.) (a) 5400 (b) 540000 (c) 54000 (d) 108000
  26. 26.Find the third proportional to 2 and 10 (that is, 2 : 10 = 10 : ?).
  27. 27.Divide ₹75 between Priya and Sneha in the ratio 8 : 7. How much does Priya get (in ₹)?
  28. 28.Round 95316 to the nearest hundred.
  29. 29.Which is closest to 197 × 70? (Round each number first.) (a) 140000 (b) 14000 (c) 1400 (d) 28000
  30. 30.Find the LCM of 3, 5 and 12.
  31. 31.A car goes 44 km on 2 litres of petrol. How far can it go on 18 litres (in km)?
  32. 32.If 5 kg of rice costs ₹105, how many kg can you buy for ₹42?
  33. 33.What is the smallest number you must add to 134 so that it divides exactly by 13?
  34. 34.How many factors does 16 have?
  35. 35.What is the smallest number you must take away from 642 so that it divides exactly by 7?
  36. 36.The HCF of two numbers is 4 and their LCM is 168. One of the numbers is 24. What is the other number?
  37. 37.How many factors does 60 have?
  38. 38.Round 56.48 to one decimal place. =
  39. 39.If 6 kg of rice costs ₹474, how many kg can you buy for ₹237?
  40. 40.Which is closest to 897 ÷ 29? (a) 60 (b) 30 (c) 15 (d) 300

Answer key

  1. 9
  2. 660
  3. 3
  4. 26/35
  5. 5/6
  6. 84
  7. 120
  8. 84
  9. 7
  10. 375
  11. 3
  12. 16
  13. 35
  14. 4
  15. 60
  16. 12
  17. 192
  18. 2
  19. 13
  20. 99
  21. 24
  22. 101
  23. 395
  24. 84
  25. 54000
  26. 50
  27. 40
  28. 95300
  29. 14000
  30. 60
  31. 396
  32. 2
  33. 9
  34. 5
  35. 5
  36. 28
  37. 12
  38. 56.5
  39. 3
  40. 30

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