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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 930 · 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.The ratio of boys to girls in a class is 9 : 4. There are 36 boys. How many girls are there?
  2. 2.What is the smallest number you must take away from 289 so that it divides exactly by 6?
  3. 3.What is 1/3 of 6 students?
  4. 4.2/5 × 1/10 =
  5. 5.5/7 × 3/4 =
  6. 6.Which is closest to 496 × 80? (Round each number first.) (a) 40000 (b) 80000 (c) 400000 (d) 4000
  7. 7.How many factors does 72 have?
  8. 8.Which of these numbers divides exactly by 11? (a) 1649 (b) 5860 (c) 6358 (d) 6244
  9. 9.11.2 ÷ 4 =
  10. 10.6.1 × 4 =
  11. 11.If 4 kg of rice costs ₹280, how many kg can you buy for ₹420?
  12. 12.What is 30% of 490?
  13. 13.Find the HCF of 72 and 64.
  14. 14.Find the HCF of 28 and 16.
  15. 15.25 ÷ 5 × 6 + 25 =
  16. 16.Divide ₹400 between Zoya and Arjun in the ratio 1 : 9. How much does Zoya get (in ₹)?
  17. 17.A hall floor is 180 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  18. 18.Find the LCM of 54 and 42.
  19. 19.If 9 kg of rice costs ₹225, how many kg can you buy for ₹100?
  20. 20.A hall floor is 480 cm long and 300 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  21. 21.Which of these numbers divides exactly by 8? (a) 8403 (b) 5050 (c) 3975 (d) 1360
  22. 22.Kavya scored 11 marks out of 20 in a test. What percentage did Kavya score?
  23. 23.Write 7/10 as a percent.
  24. 24.Find the HCF of 25 and 30.
  25. 25.63 ÷ 7 × 5 + 16 =
  26. 26.Find the LCM of 3, 6 and 7.
  27. 27.22 + 4 × 3 − 1 =
  28. 28.A hall floor is 135 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  29. 29.What is 1/5 of 40 km?
  30. 30.4 : 7 = 32 : ?
  31. 31.Write 1/2 as a percent.
  32. 32.A hostel has enough food for 4 students for 19 days. How many days will the same food last for 19 students?
  33. 33.If 9 kg of rice costs ₹270, how many kg can you buy for ₹240?
  34. 34.3 painters can paint a school in 19 days. How many days would 19 painters take, working at the same speed?
  35. 35.What percent of 500 is 365?
  36. 36.Find the HCF of 14 and 63.
  37. 37.Find the LCM of 4, 15 and 8.
  38. 38.6.6 × 2 =
  39. 39.Round 28.32 to one decimal place. =
  40. 40.Which of these numbers divides exactly by 8? (a) 2682 (b) 6864 (c) 3623 (d) 1462

Answer key

  1. 16
  2. 1
  3. 2
  4. 1/25
  5. 15/28
  6. 40000
  7. 12
  8. 6358
  9. 2.8
  10. 24.4
  11. 6
  12. 147
  13. 8
  14. 4
  15. 55
  16. 40
  17. 30
  18. 378
  19. 4
  20. 40
  21. 1360
  22. 55
  23. 70
  24. 5
  25. 61
  26. 42
  27. 33
  28. 6
  29. 8
  30. 56
  31. 50
  32. 4
  33. 8
  34. 3
  35. 73
  36. 7
  37. 120
  38. 13.2
  39. 28.3
  40. 6864

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