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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 720 · 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.What is 3/7 of 112 students?
  2. 2.Three temple bells ring every 8, 30 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.What percent of 80 is 60?
  4. 4.Which is closest to 498 + 99 + 905? (a) 1500 (b) 1400 (c) 1600 (d) 1700
  5. 5.What is the smallest number you must add to 407 so that it divides exactly by 13?
  6. 6.12 ÷ 2 × 8 + 24 =
  7. 7.Which is closest to 496 × 68? (Round each number first.) (a) 70000 (b) 35000 (c) 350000 (d) 3500
  8. 8.Round 72.61 to one decimal place. =
  9. 9.Three temple bells ring every 10, 15 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  10. 10.Divide ₹133 between Kabir and Sneha in the ratio 1 : 6. How much does Kabir get (in ₹)?
  11. 11.Which is closest to 899 × 69? (Round each number first.) (a) 126000 (b) 6300 (c) 630000 (d) 63000
  12. 12.What is 5% of 600?
  13. 13.48 ÷ 4 × 3 + 20 =
  14. 14.Find the LCM of 14 and 8.
  15. 15.How many factors does 63 have?
  16. 16.Tara scored 17 marks out of 20 in a test. What percentage did Tara score?
  17. 17.Two tanks hold 140 litres and 80 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  18. 18.Which is closest to 596 × 79? (Round each number first.) (a) 480000 (b) 48000 (c) 4800 (d) 96000
  19. 19.A car goes 78 km on 6 litres of petrol. How far can it go on 39 litres (in km)?
  20. 20.The HCF of two numbers is 2 and their LCM is 56. One of the numbers is 14. What is the other number?
  21. 21.40% of a number is 2. What is the number?
  22. 22.Three temple bells ring every 6, 4 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  23. 23.Find the LCM of 24 and 9.
  24. 24.How many factors does 34 have?
  25. 25.How many factors does 12 have?
  26. 26.Find the HCF of 54 and 45.
  27. 27.What is 30% of 210?
  28. 28.60% of a number is 93. What is the number?
  29. 29.2.74 + 7.6 =
  30. 30.Karan scored 5 marks out of 25 in a test. What percentage did Karan score?
  31. 31.The ratio of boys to girls in a class is 1 : 7. There are 6 boys. How many girls are there?
  32. 32.Find the smallest number bigger than 10 that leaves a remainder of 1 when divided by 8, 6 or 10.
  33. 33.What is the smallest number you must take away from 431 so that it divides exactly by 3?
  34. 34.Which is closest to 898 × 81? (Round each number first.) (a) 7200 (b) 72000 (c) 720000 (d) 144000
  35. 35.A hostel has enough food for 10 students for 20 days. How many days will the same food last for 5 students?
  36. 36.8 painters can paint a school in 7 days. How many days would 4 painters take, working at the same speed?
  37. 37.36 ÷ 9 × 2 + 4 =
  38. 38.A car goes 44 km on 4 litres of petrol. How far can it go on 27 litres (in km)?
  39. 39.A car goes 50 km on 5 litres of petrol. How far can it go on 29 litres (in km)?
  40. 40.15 ÷ 3 × 4 + 26 =

Answer key

  1. 48
  2. 120
  3. 75
  4. 1500
  5. 9
  6. 72
  7. 35000
  8. 72.6
  9. 120
  10. 19
  11. 63000
  12. 30
  13. 56
  14. 56
  15. 6
  16. 85
  17. 20
  18. 48000
  19. 507
  20. 8
  21. 5
  22. 24
  23. 72
  24. 4
  25. 6
  26. 9
  27. 63
  28. 155
  29. 10.34
  30. 20
  31. 42
  32. 121
  33. 2
  34. 72000
  35. 40
  36. 14
  37. 12
  38. 297
  39. 290
  40. 46

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