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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 989 · 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.Find the HCF of 36 and 28.
  2. 2.What is the smallest number you must add to 293 so that it divides exactly by 8?
  3. 3.If 4 kg of rice costs ₹172, how many kg can you buy for ₹129?
  4. 4.6 : 7 = 18 : ?
  5. 5.If 4 mangoes cost ₹176, how much do 14 mangoes cost (in ₹)?
  6. 6.Divide ₹506 between Rahul and Farhan in the ratio 9 : 2. How much does Rahul get (in ₹)?
  7. 7.What is 10% of 540?
  8. 8.Two tanks hold 70 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  9. 9.A hostel has enough food for 10 students for 5 days. How many days will the same food last for 2 students?
  10. 10.Find the third proportional to 6 and 30 (that is, 6 : 30 = 30 : ?).
  11. 11.Divide ₹171 between Priya and Dev in the ratio 7 : 2. How much does Priya get (in ₹)?
  12. 12.Find the LCM of 6, 12 and 4.
  13. 13.Two tanks hold 70 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  14. 14.What is the smallest number you must take away from 513 so that it divides exactly by 4?
  15. 15.The HCF of two numbers is 5 and their LCM is 210. One of the numbers is 30. What is the other number?
  16. 16.4.2 ÷ 2 =
  17. 17.8.15 + 6.6 =
  18. 18.What is 120% of 395?
  19. 19.What percent of 400 is 380?
  20. 20.Saanvi takes 30 seconds and Ananya 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?
  21. 21.Three temple bells ring every 10, 20 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  22. 22.Divide ₹40 between Farhan and Ananya in the ratio 1 : 4. How much does Ananya get (in ₹)?
  23. 23.How many factors does 52 have?
  24. 24.Isha scored 2 marks out of 40 in a test. What percentage did Isha score?
  25. 25.9/12 − 1/2 =
  26. 26.Which is closest to 298 + 203 + 595? (a) 1300 (b) 1200 (c) 1000 (d) 1100
  27. 27.What percent of 400 is 252?
  28. 28.What is the smallest number you must add to 787 so that it divides exactly by 13?
  29. 29.How many factors does 63 have?
  30. 30.What percent of 40 is 34?
  31. 31.4/11 × 1/2 =
  32. 32.Round 29569 to the nearest hundred.
  33. 33.Find the HCF of 30 and 36.
  34. 34.Find the smallest number bigger than 15 that leaves a remainder of 1 when divided by 3, 15 or 4.
  35. 35.5.09 + 1.4 =
  36. 36.2/3 − 3/8 =
  37. 37.Round 67.74 to one decimal place. =
  38. 38.Aditya takes 54 seconds and Sneha takes 90 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?
  39. 39.What is 20% of 70?
  40. 40.A car goes 26 km on 2 litres of petrol. How far can it go on 29 litres (in km)?

Answer key

  1. 4
  2. 3
  3. 3
  4. 21
  5. 616
  6. 414
  7. 54
  8. 10
  9. 25
  10. 150
  11. 133
  12. 12
  13. 10
  14. 1
  15. 35
  16. 2.1
  17. 14.75
  18. 474
  19. 95
  20. 90
  21. 60
  22. 32
  23. 6
  24. 5
  25. 1/4
  26. 1100
  27. 63
  28. 6
  29. 6
  30. 85
  31. 2/11
  32. 29600
  33. 6
  34. 61
  35. 6.49
  36. 7/24
  37. 67.7
  38. 270
  39. 14
  40. 377

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