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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 541 · 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.Which is closest to 103 + 496 + 699? (a) 1400 (b) 1300 (c) 1500 (d) 1200
  2. 2.Diya scored 8 marks out of 40 in a test. What percentage did Diya score?
  3. 3.Find the smallest number bigger than 15 that leaves a remainder of 4 when divided by 6, 15 or 9.
  4. 4.What is the smallest number you must take away from 389 so that it divides exactly by 7?
  5. 5.Two tanks hold 80 litres and 140 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  6. 6.3/4 of 12 + 9 × 6 =
  7. 7.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  8. 8.Find the LCM of 28 and 36.
  9. 9.12 ÷ 6 × 3 + 22 =
  10. 10.Dev takes 48 seconds and Diya 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?
  11. 11.7 : 2 = 63 : ?
  12. 12.Which of these numbers divides exactly by 8? (a) 4603 (b) 9794 (c) 8800 (d) 4834
  13. 13.A car goes 42 km on 3 litres of petrol. How far can it go on 29 litres (in km)?
  14. 14.Three temple bells ring every 12, 15 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.What is 1/4 of ₹88?
  16. 16.9.8 × 6 =
  17. 17.Round 85.86 to one decimal place. =
  18. 18.9/11 + 1/2 =
  19. 19.6 × (11 − 8) + 36 ÷ 6 =
  20. 20.Which is closest to 900 + 501 + 397? (a) 1700 (b) 1800 (c) 1900 (d) 2000
  21. 21.1/4 × 2/5 =
  22. 22.47 + 4 × 5 − 29 =
  23. 23.4/10 − 1/3 =
  24. 24.The HCF of two numbers is 3 and their LCM is 42. One of the numbers is 21. What is the other number?
  25. 25.How many factors does 100 have?
  26. 26.Which of these numbers divides exactly by 3? (a) 1449 (b) 3958 (c) 7871 (d) 2696
  27. 27.60% of a number is 213. What is the number?
  28. 28.Divide ₹390 between Rahul and Kabir in the ratio 8 : 5. How much does Kabir get (in ₹)?
  29. 29.Two tanks hold 50 litres and 20 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  30. 30.What is 1/5 of 105 litres?
  31. 31.The ratio of boys to girls in a class is 3 : 2. There are 18 boys. How many girls are there?
  32. 32.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 12, 15 or 3.
  33. 33.The HCF of two numbers is 5 and their LCM is 75. One of the numbers is 25. What is the other number?
  34. 34.Round 19.62 to one decimal place. =
  35. 35.Ishaan takes 48 seconds and Priya takes 36 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?
  36. 36.Karan scored 16 marks out of 20 in a test. What percentage did Karan score?
  37. 37.Round 65479 to the nearest hundred.
  38. 38.3/7 + 3/5 =
  39. 39.The ratio of boys to girls in a class is 6 : 7. There are 60 boys. How many girls are there?
  40. 40.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 5, 4 or 12.

Answer key

  1. 1300
  2. 20
  3. 94
  4. 4
  5. 20
  6. 63
  7. 12
  8. 252
  9. 28
  10. 240
  11. 18
  12. 8800
  13. 406
  14. 120
  15. 22
  16. 58.8
  17. 85.9
  18. 29/22
  19. 24
  20. 1800
  21. 1/10
  22. 38
  23. 1/15
  24. 6
  25. 9
  26. 1449
  27. 355
  28. 150
  29. 10
  30. 21
  31. 12
  32. 62
  33. 15
  34. 19.6
  35. 144
  36. 80
  37. 65500
  38. 36/35
  39. 70
  40. 61

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