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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 456 · 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 26 km on 2 litres of petrol. How far can it go on 40 litres (in km)?
  2. 2.Karan scored 56 marks out of 80 in a test. What percentage did Karan score?
  3. 3.Find the LCM of 8 and 6.
  4. 4.2/9 of 99 + 2 × 2 =
  5. 5.9 : 11 = 81 : ?
  6. 6.Which is closest to 897 × 88? (Round each number first.) (a) 810000 (b) 8100 (c) 81000 (d) 162000
  7. 7.Find the HCF of 49 and 42.
  8. 8.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  9. 9.What percent of 250 is 240?
  10. 10.If 5 erasers cost ₹145, how much do 4 erasers cost (in ₹)?
  11. 11.1/2 − 1/7 =
  12. 12.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 8, 9 or 6.
  13. 13.Divide ₹848 between Arjun and Tara in the ratio 7 : 9. How much does Tara get (in ₹)?
  14. 14.6.8 × 8 =
  15. 15.What percent of 50 is 36?
  16. 16.Find the HCF of 20 and 12.
  17. 17.Which is closest to 1398 ÷ 19? (a) 35 (b) 700 (c) 70 (d) 140
  18. 18.Find the third proportional to 4 and 16 (that is, 4 : 16 = 16 : ?).
  19. 19.Find the LCM of 2 and 9.
  20. 20.Write 3/4 as a percent.
  21. 21.If 2 mangoes cost ₹24, how much do 6 mangoes cost (in ₹)?
  22. 22.What is the smallest number you must add to 613 so that it divides exactly by 9?
  23. 23.Which of these numbers divides exactly by 3? (a) 3868 (b) 1714 (c) 5287 (d) 6699
  24. 24.Which of these numbers divides exactly by 6? (a) 5072 (b) 7492 (c) 5503 (d) 7848
  25. 25.Which is closest to 698 + 801 + 501? (a) 2200 (b) 2100 (c) 2000 (d) 1900
  26. 26.What is the smallest number you must take away from 862 so that it divides exactly by 6?
  27. 27.8.58 + 4.9 =
  28. 28.5 : 11 = 30 : ?
  29. 29.What is the smallest number you must add to 575 so that it divides exactly by 3?
  30. 30.Find the LCM of 10, 2 and 3.
  31. 31.What is 20% of 365?
  32. 32.Round 68284 to the nearest thousand.
  33. 33.Isha takes 50 seconds and Meera takes 60 seconds to run once round a track. They start together from the start line. After how many seconds will they first be at the start line together again?
  34. 34.Find the HCF of 81 and 36.
  35. 35.Find the LCM of 3, 11 and 5.
  36. 36.32 ÷ 8 × 4 + 19 =
  37. 37.Three temple bells ring every 4, 8 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  38. 38.Round 95.09 to one decimal place. =
  39. 39.1/2 of 10 + 3 × 7 =
  40. 40.Round 5838 to the nearest thousand.

Answer key

  1. 520
  2. 70
  3. 24
  4. 26
  5. 99
  6. 81000
  7. 7
  8. 32
  9. 96
  10. 116
  11. 5/14
  12. 73
  13. 477
  14. 54.4
  15. 72
  16. 4
  17. 70
  18. 64
  19. 18
  20. 75
  21. 72
  22. 8
  23. 6699
  24. 7848
  25. 2000
  26. 4
  27. 13.48
  28. 66
  29. 1
  30. 30
  31. 73
  32. 68000
  33. 300
  34. 9
  35. 165
  36. 35
  37. 120
  38. 95.1
  39. 26
  40. 6000

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