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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 865 · 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 4 kites cost ₹192, how much do 6 kites cost (in ₹)?
  2. 2.Isha scored 32 marks out of 50 in a test. What percentage did Isha score?
  3. 3.1.24 + 8.6 =
  4. 4.Find the LCM of 12, 5 and 10.
  5. 5.What is the smallest number you must take away from 667 so that it divides exactly by 6?
  6. 6.15 ÷ 3 × 7 + 28 =
  7. 7.The HCF of two numbers is 9 and their LCM is 54. One of the numbers is 18. What is the other number?
  8. 8.Find the LCM of 2, 8 and 10.
  9. 9.If 3 erasers cost ₹42, how much do 4 erasers cost (in ₹)?
  10. 10.A hall floor is 315 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  11. 11.7 × (28 − 14) + 28 ÷ 4 =
  12. 12.29 − 16 ÷ 4 × 7 =
  13. 13.If 12 pens cost ₹36, how much do 13 pens cost (in ₹)?
  14. 14.Write 1/4 as a percent.
  15. 15.What is 2/7 of 105 km?
  16. 16.The ratio of boys to girls in a class is 8 : 9. There are 24 boys. How many girls are there?
  17. 17.6.5 × 2 =
  18. 18.Find the HCF of 9 and 12.
  19. 19.Three temple bells ring every 9, 6 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  20. 20.Find the HCF of 48 and 108.
  21. 21.Find the HCF of 108 and 60.
  22. 22.What percent of 500 is 400?
  23. 23.How many factors does 38 have?
  24. 24.A hostel has enough food for 7 students for 19 days. How many days will the same food last for 19 students?
  25. 25.Divide ₹247 between Manav and Sneha in the ratio 7 : 6. How much does Manav get (in ₹)?
  26. 26.If 5 erasers cost ₹60, how much do 3 erasers cost (in ₹)?
  27. 27.Which is closest to 401 + 199 + 800? (a) 1300 (b) 1600 (c) 1500 (d) 1400
  28. 28.9 : 11 = 72 : ?
  29. 29.If 4 kites cost ₹200, how much do 8 kites cost (in ₹)?
  30. 30.Find the LCM of 8, 5 and 15.
  31. 31.Which of these numbers divides exactly by 11? (a) 9771 (b) 5062 (c) 5571 (d) 4180
  32. 32.Find the LCM of 14, 6 and 4.
  33. 33.A hall floor is 140 cm long and 60 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  34. 34.4 : 8 = 28 : ?
  35. 35.Find the LCM of 15, 3 and 4.
  36. 36.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  37. 37.Kavya takes 30 seconds and Meera takes 50 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?
  38. 38.The ratio of boys to girls in a class is 1 : 3. There are 5 boys. How many girls are there?
  39. 39.2/3 + 10/12 =
  40. 40.Write 3/5 as a percent.

Answer key

  1. 288
  2. 64
  3. 9.84
  4. 60
  5. 1
  6. 63
  7. 27
  8. 40
  9. 56
  10. 28
  11. 105
  12. 1
  13. 39
  14. 25
  15. 30
  16. 27
  17. 13
  18. 3
  19. 72
  20. 12
  21. 12
  22. 80
  23. 4
  24. 7
  25. 133
  26. 36
  27. 1400
  28. 88
  29. 400
  30. 120
  31. 4180
  32. 84
  33. 21
  34. 56
  35. 60
  36. 20
  37. 150
  38. 15
  39. 3/2
  40. 60

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