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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 921 · 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.If 9 kg of rice costs ₹648, how many kg can you buy for ₹288?
  2. 2.Three temple bells ring every 5, 4 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.Three temple bells ring every 10, 6 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.Three temple bells ring every 24, 10 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.Priya takes 30 seconds and Zoya takes 75 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. 6.5.44 + 3.9 =
  7. 7.Divide ₹54 between Sneha and Saanvi in the ratio 7 : 2. How much does Saanvi get (in ₹)?
  8. 8.Three temple bells ring every 8, 5 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  9. 9.What is the smallest number you must add to 429 so that it divides exactly by 12?
  10. 10.If 4 kg of rice costs ₹260, how many kg can you buy for ₹715?
  11. 11.What is the smallest number you must add to 959 so that it divides exactly by 6?
  12. 12.The HCF of two numbers is 5 and their LCM is 280. One of the numbers is 35. What is the other number?
  13. 13.How many factors does 27 have?
  14. 14.1/3 × 1/5 =
  15. 15.3/8 + 1/2 =
  16. 16.What is 10% of 550?
  17. 17.A hall floor is 175 cm long and 100 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  18. 18.35 + 12 × 12 − 28 =
  19. 19.Find the smallest number bigger than 12 that leaves a remainder of 1 when divided by 12, 9 or 5.
  20. 20.Find the HCF of 72 and 81.
  21. 21.5 : 6 = 35 : ?
  22. 22.(20 + 3) × 4 − 12 =
  23. 23.Divide ₹210 between Diya and Rahul in the ratio 5 : 1. How much does Rahul get (in ₹)?
  24. 24.2.3 × 5 =
  25. 25.The ratio of boys to girls in a class is 7 : 1. There are 63 boys. How many girls are there?
  26. 26.43 − 25 ÷ 5 × 5 =
  27. 27.Zoya takes 80 seconds and Arjun 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?
  28. 28.If 4 kg of rice costs ₹232, how many kg can you buy for ₹348?
  29. 29.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 9, 6 or 5.
  30. 30.Find the LCM of 6 and 5.
  31. 31.What is 5/7 of ₹91?
  32. 32.Saanvi takes 50 seconds and Farhan 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.What is the smallest number you must take away from 973 so that it divides exactly by 8?
  34. 34.Round 72.08 to one decimal place. =
  35. 35.150% of a number is 126. What is the number?
  36. 36.10% of a number is 45. What is the number?
  37. 37.A hall floor is 480 cm long and 420 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  38. 38.(13 + 7) × 6 − 8 =
  39. 39.Find the HCF of 77 and 22.
  40. 40.How many factors does 67 have?

Answer key

  1. 4
  2. 40
  3. 120
  4. 120
  5. 150
  6. 9.34
  7. 12
  8. 40
  9. 3
  10. 11
  11. 1
  12. 40
  13. 4
  14. 1/15
  15. 7/8
  16. 55
  17. 28
  18. 151
  19. 181
  20. 9
  21. 42
  22. 80
  23. 35
  24. 11.5
  25. 9
  26. 18
  27. 240
  28. 6
  29. 92
  30. 30
  31. 65
  32. 450
  33. 5
  34. 72.1
  35. 84
  36. 450
  37. 56
  38. 112
  39. 11
  40. 2

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