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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 837 · 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.Kavya takes 80 seconds and Ishaan takes 30 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?
  2. 2.What percent of 40 is 22?
  3. 3.1/2 + 10/12 =
  4. 4.Which is closest to 204 + 404 + 502? (a) 1100 (b) 1200 (c) 1300 (d) 1000
  5. 5.Three temple bells ring every 18, 15 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.Find the HCF of 12 and 18.
  7. 7.25% of a number is 99. What is the number?
  8. 8.How many factors does 87 have?
  9. 9.11 : 5 = 77 : ?
  10. 10.6.29 + 2.3 =
  11. 11.What percent of 25 is 21?
  12. 12.5 ÷ 2 =
  13. 13.Which is closest to 1193 ÷ 41? (a) 300 (b) 60 (c) 15 (d) 30
  14. 14.What is the smallest number you must take away from 279 so that it divides exactly by 6?
  15. 15.Priya takes 36 seconds and Saanvi takes 40 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?
  16. 16.(12 + 15) × 2 − 3 =
  17. 17.Which is closest to 300 × 71? (Round each number first.) (a) 21000 (b) 210000 (c) 42000 (d) 2100
  18. 18.The ratio of boys to girls in a class is 2 : 7. There are 18 boys. How many girls are there?
  19. 19.How many factors does 64 have?
  20. 20.Round 78058 to the nearest thousand.
  21. 21.1/3 + 3/4 =
  22. 22.What is 2/5 of 115 students?
  23. 23.Three temple bells ring every 4, 8 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  24. 24.60% of a number is 348. What is the number?
  25. 25.How many factors does 21 have?
  26. 26.3/4 − 1/3 =
  27. 27.Meera scored 4 marks out of 25 in a test. What percentage did Meera score?
  28. 28.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 6, 12 or 9.
  29. 29.Round 87.58 to one decimal place. =
  30. 30.Which is closest to 797 + 397 + 598? (a) 1700 (b) 1900 (c) 2000 (d) 1800
  31. 31.1/2 × 1/4 =
  32. 32.Farhan takes 50 seconds and Manav 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?
  33. 33.A car goes 96 km on 4 litres of petrol. How far can it go on 36 litres (in km)?
  34. 34.9/10 × 1/4 =
  35. 35.2 × (14 − 2) + 35 ÷ 7 =
  36. 36.Divide ₹405 between Diya and Priya in the ratio 8 : 7. How much does Diya get (in ₹)?
  37. 37.Find the LCM of 12, 6 and 15.
  38. 38.Three temple bells ring every 10, 15 and 18 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  39. 39.What percent of 500 is 125?
  40. 40.12 − 8 ÷ 2 × 2 =

Answer key

  1. 240
  2. 55
  3. 4/3
  4. 1100
  5. 90
  6. 6
  7. 396
  8. 4
  9. 35
  10. 8.59
  11. 84
  12. 2.5
  13. 30
  14. 3
  15. 360
  16. 51
  17. 21000
  18. 63
  19. 7
  20. 78000
  21. 13/12
  22. 46
  23. 40
  24. 580
  25. 4
  26. 5/12
  27. 16
  28. 38
  29. 87.6
  30. 1800
  31. 1/8
  32. 450
  33. 864
  34. 9/40
  35. 29
  36. 216
  37. 60
  38. 90
  39. 25
  40. 4

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