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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 894 · 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. 1.3/6 × 8/11 =
  2. 2.2/6 + 10/11 =
  3. 3.38 + 12 × 8 − 10 =
  4. 4.36 ÷ 3 × 7 + 8 =
  5. 5.What percent of 80 is 16?
  6. 6.Which is closest to 704 × 49? (Round each number first.) (a) 3500 (b) 35000 (c) 350000 (d) 70000
  7. 7.The ratio of boys to girls in a class is 1 : 9. There are 6 boys. How many girls are there?
  8. 8.Write 7/50 as a percent.
  9. 9.Find the LCM of 4, 10 and 5.
  10. 10.If 3 kg of rice costs ₹96, how many kg can you buy for ₹128?
  11. 11.Which is closest to 196 × 69? (Round each number first.) (a) 140000 (b) 14000 (c) 1400 (d) 28000
  12. 12.What is 7/9 of 153 students?
  13. 13.2 : 8 = 14 : ?
  14. 14.What is the smallest number you must take away from 230 so that it divides exactly by 11?
  15. 15.3/10 × 1/2 =
  16. 16.The HCF of two numbers is 7 and their LCM is 392. One of the numbers is 49. What is the other number?
  17. 17.23 + 8 × 6 − 22 =
  18. 18.How many factors does 80 have?
  19. 19.If 11 erasers cost ₹231, how much do 19 erasers cost (in ₹)?
  20. 20.4/6 − 1/2 =
  21. 21.5 painters can paint a school in 23 days. How many days would 23 painters take, working at the same speed?
  22. 22.3.2 × 3 =
  23. 23.Divide ₹40 between Ananya and Meera in the ratio 4 : 1. How much does Meera get (in ₹)?
  24. 24.What is the smallest number you must add to 210 so that it divides exactly by 8?
  25. 25.The HCF of two numbers is 2 and their LCM is 84. One of the numbers is 12. What is the other number?
  26. 26.If 12 mangoes cost ₹636, how much do 13 mangoes cost (in ₹)?
  27. 27.If 6 kg of rice costs ₹210, how many kg can you buy for ₹455?
  28. 28.What is 75% of 140?
  29. 29.What is the smallest number you must add to 128 so that it divides exactly by 7?
  30. 30.Divide ₹99 between Zoya and Kavya in the ratio 2 : 1. How much does Kavya get (in ₹)?
  31. 31.Which is closest to 904 × 82? (Round each number first.) (a) 7200 (b) 72000 (c) 720000 (d) 144000
  32. 32.Ananya takes 50 seconds and Rohan 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?
  33. 33.2/7 + 1/5 =
  34. 34.2/8 − 1/5 =
  35. 35.Three temple bells ring every 10, 18 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.The HCF of two numbers is 4 and their LCM is 40. One of the numbers is 8. What is the other number?
  37. 37.25% of a number is 63. What is the number?
  38. 38.How many factors does 20 have?
  39. 39.1/3 of 9 + 2 × 6 =
  40. 40.How many factors does 48 have?

Answer key

  1. 4/11
  2. 41/33
  3. 124
  4. 92
  5. 20
  6. 35000
  7. 54
  8. 14
  9. 20
  10. 4
  11. 14000
  12. 119
  13. 56
  14. 10
  15. 3/20
  16. 56
  17. 49
  18. 10
  19. 399
  20. 1/6
  21. 5
  22. 9.6
  23. 8
  24. 6
  25. 14
  26. 689
  27. 13
  28. 105
  29. 5
  30. 33
  31. 72000
  32. 150
  33. 17/35
  34. 1/20
  35. 90
  36. 20
  37. 252
  38. 6
  39. 15
  40. 10

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