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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 904 · 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.Round 14020 to the nearest hundred.
  2. 2.Dev scored 7 marks out of 25 in a test. What percentage did Dev score?
  3. 3.Round 69.12 to one decimal place. =
  4. 4.Find the LCM of 8 and 12.
  5. 5.Find the LCM of 18 and 14.
  6. 6.6.3 × 5 =
  7. 7.Which is closest to 800 × 18? (Round each number first.) (a) 1600 (b) 16000 (c) 32000 (d) 160000
  8. 8.Which of these numbers divides exactly by 8? (a) 2973 (b) 1991 (c) 4899 (d) 5848
  9. 9.Which is closest to 600 + 903 + 196? (a) 1900 (b) 1600 (c) 1800 (d) 1700
  10. 10.7/11 − 2/5 =
  11. 11.26.6 ÷ 7 =
  12. 12.1.79 + 9.7 =
  13. 13.Find the third proportional to 3 and 12 (that is, 3 : 12 = 12 : ?).
  14. 14.What percent of 40 is 26?
  15. 15.If 2 pencil boxes cost ₹76, how much do 4 pencil boxes cost (in ₹)?
  16. 16.27 ÷ 9 × 6 + 24 =
  17. 17.Round 56.09 to one decimal place. =
  18. 18.4/11 + 1/2 =
  19. 19.Round 71566 to the nearest ten.
  20. 20.A car goes 84 km on 7 litres of petrol. How far can it go on 21 litres (in km)?
  21. 21.How many factors does 99 have?
  22. 22.Find the LCM of 21 and 18.
  23. 23.Nisha takes 90 seconds and Dev takes 54 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?
  24. 24.What is 30% of 530?
  25. 25.3.7 × 6 =
  26. 26.Two tanks hold 200 litres and 225 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  27. 27.If 11 bottles of juice cost ₹363, how much do 14 bottles of juice cost (in ₹)?
  28. 28.3/5 of 40 + 3 × 7 =
  29. 29.If 6 mangoes cost ₹216, how much do 2 mangoes cost (in ₹)?
  30. 30.Write 13/50 as a percent.
  31. 31.(5 + 8) × 4 − 19 =
  32. 32.The HCF of two numbers is 8 and their LCM is 240. One of the numbers is 40. What is the other number?
  33. 33.What is 75% of 440?
  34. 34.Find the LCM of 2, 7 and 8.
  35. 35.What is the smallest number you must add to 216 so that it divides exactly by 11?
  36. 36.What is 3/10 of 230 litres?
  37. 37.Two tanks hold 120 litres and 210 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  38. 38.Three temple bells ring every 12, 24 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  39. 39.Find the LCM of 15 and 24.
  40. 40.Round 33.61 to one decimal place. =

Answer key

  1. 14000
  2. 28
  3. 69.1
  4. 24
  5. 126
  6. 31.5
  7. 16000
  8. 5848
  9. 1700
  10. 13/55
  11. 3.8
  12. 11.49
  13. 48
  14. 65
  15. 152
  16. 42
  17. 56.1
  18. 19/22
  19. 71570
  20. 252
  21. 6
  22. 126
  23. 270
  24. 159
  25. 22.2
  26. 25
  27. 462
  28. 45
  29. 72
  30. 26
  31. 33
  32. 48
  33. 330
  34. 56
  35. 4
  36. 69
  37. 30
  38. 120
  39. 120
  40. 33.6

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