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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 761 · 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 87.71 to one decimal place. =
  2. 2.Pooja scored 48 marks out of 80 in a test. What percentage did Pooja score?
  3. 3.What percent of 200 is 138?
  4. 4.Find the LCM of 27 and 21.
  5. 5.Zoya takes 45 seconds and Ishaan 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?
  6. 6.5.56 + 2.7 =
  7. 7.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  8. 8.3/4 + 5/12 =
  9. 9.Two tanks hold 225 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  10. 10.Three temple bells ring every 15, 30 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  11. 11.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  12. 12.What is 1/2 of 14 litres?
  13. 13.Three temple bells ring every 10, 12 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  14. 14.8.12 + 3.6 =
  15. 15.Which is closest to 895 + 399 + 696? (a) 2100 (b) 2000 (c) 1900 (d) 2200
  16. 16.What is the smallest number you must add to 470 so that it divides exactly by 9?
  17. 17.What percent of 400 is 348?
  18. 18.What percent of 25 is 10?
  19. 19.What is 2/5 of 135 students?
  20. 20.If 9 pens cost ₹99, how much do 19 pens cost (in ₹)?
  21. 21.How many factors does 46 have?
  22. 22.10% of a number is 7. What is the number?
  23. 23.A car goes 96 km on 8 litres of petrol. How far can it go on 18 litres (in km)?
  24. 24.How many factors does 55 have?
  25. 25.What is the smallest number you must add to 874 so that it divides exactly by 6?
  26. 26.Find the HCF of 52 and 65.
  27. 27.A hall floor is 200 cm long and 175 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  28. 28.Divide ₹252 between Kabir and Sneha in the ratio 5 : 2. How much does Sneha get (in ₹)?
  29. 29.1/2 of 4 + 4 × 6 =
  30. 30.Write 1/2 as a percent.
  31. 31.Round 71273 to the nearest ten.
  32. 32.Round 15.94 to one decimal place. =
  33. 33.10/11 − 1/2 =
  34. 34.Aditya takes 80 seconds and Kavya takes 45 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?
  35. 35.What is the smallest number you must take away from 642 so that it divides exactly by 8?
  36. 36.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  37. 37.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 5, 4 or 15.
  38. 38.7/8 + 7/12 =
  39. 39.What is the smallest number you must add to 885 so that it divides exactly by 9?
  40. 40.4/6 − 1/10 =

Answer key

  1. 87.7
  2. 60
  3. 69
  4. 189
  5. 270
  6. 8.26
  7. 36
  8. 7/6
  9. 45
  10. 60
  11. 32
  12. 7
  13. 60
  14. 11.72
  15. 2000
  16. 7
  17. 87
  18. 40
  19. 54
  20. 209
  21. 4
  22. 70
  23. 216
  24. 4
  25. 2
  26. 13
  27. 56
  28. 72
  29. 26
  30. 50
  31. 71270
  32. 15.9
  33. 9/22
  34. 720
  35. 2
  36. 20
  37. 61
  38. 35/24
  39. 6
  40. 17/30

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