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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 967 · 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.Write 3/4 as a percent.
  2. 2.Find the LCM of 35 and 45.
  3. 3.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 4, 10 or 6.
  4. 4.54 ÷ 6 × 3 + 5 =
  5. 5.6 ÷ 2 × 3 + 17 =
  6. 6.Find the third proportional to 4 and 20 (that is, 4 : 20 = 20 : ?).
  7. 7.How many factors does 43 have?
  8. 8.2/3 − 1/8 =
  9. 9.Divide ₹224 between Ishaan and Nisha in the ratio 9 : 5. How much does Ishaan get (in ₹)?
  10. 10.Divide ₹288 between Sneha and Pooja in the ratio 7 : 1. How much does Sneha get (in ₹)?
  11. 11.A hall floor is 210 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  12. 12.41 − 35 ÷ 5 × 3 =
  13. 13.42 ÷ 6 × 5 + 22 =
  14. 14.Three temple bells ring every 6, 24 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  15. 15.2/4 + 2/3 =
  16. 16.The HCF of two numbers is 4 and their LCM is 24. One of the numbers is 8. What is the other number?
  17. 17.Two tanks hold 250 litres and 100 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  18. 18.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  19. 19.Divide ₹600 between Zoya and Ishaan in the ratio 5 : 7. How much does Ishaan get (in ₹)?
  20. 20.Which is closest to 398 + 799 + 698? (a) 2100 (b) 1800 (c) 2000 (d) 1900
  21. 21.Find the third proportional to 8 and 24 (that is, 8 : 24 = 24 : ?).
  22. 22.Find the HCF of 48 and 42.
  23. 23.Which of these numbers divides exactly by 8? (a) 7920 (b) 1053 (c) 5706 (d) 8403
  24. 24.9 : 3 = 27 : ?
  25. 25.Round 22.54 to one decimal place. =
  26. 26.9 × (15 − 2) + 12 ÷ 2 =
  27. 27.Round 75318 to the nearest thousand.
  28. 28.31 − 21 ÷ 7 × 8 =
  29. 29.38 + 9 × 4 − 26 =
  30. 30.What is the smallest number you must take away from 247 so that it divides exactly by 8?
  31. 31.Which is closest to 602 × 42? (Round each number first.) (a) 240000 (b) 48000 (c) 2400 (d) 24000
  32. 32.Diya takes 40 seconds and Arjun 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?
  33. 33.What is 2/5 of ₹145?
  34. 34.Which of these numbers divides exactly by 8? (a) 9081 (b) 9703 (c) 1758 (d) 5048
  35. 35.Aarav scored 14 marks out of 25 in a test. What percentage did Aarav score?
  36. 36.What percent of 20 is 11?
  37. 37.A hostel has enough food for 2 students for 9 days. How many days will the same food last for 6 students?
  38. 38.What is the smallest number you must take away from 591 so that it divides exactly by 12?
  39. 39.What is 150% of 486?
  40. 40.Which of these numbers divides exactly by 11? (a) 9161 (b) 6221 (c) 6864 (d) 6085

Answer key

  1. 75
  2. 315
  3. 62
  4. 32
  5. 26
  6. 100
  7. 2
  8. 13/24
  9. 144
  10. 252
  11. 21
  12. 20
  13. 57
  14. 72
  15. 7/6
  16. 12
  17. 50
  18. 20
  19. 350
  20. 1900
  21. 72
  22. 6
  23. 7920
  24. 9
  25. 22.5
  26. 123
  27. 75000
  28. 7
  29. 48
  30. 7
  31. 24000
  32. 200
  33. 58
  34. 5048
  35. 56
  36. 55
  37. 3
  38. 3
  39. 729
  40. 6864

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