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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 246 · 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. 1.50 + 6 × 4 − 24 =
  2. 2.Round 57237 to the nearest ten.
  3. 3.Which is closest to 1801 ÷ 31? (a) 600 (b) 60 (c) 30 (d) 120
  4. 4.A car goes 78 km on 6 litres of petrol. How far can it go on 16 litres (in km)?
  5. 5.62 − 21 ÷ 7 × 8 =
  6. 6.Divide ₹658 between Kavya and Aarav in the ratio 9 : 5. How much does Kavya get (in ₹)?
  7. 7.Find the LCM of 8 and 18.
  8. 8.The ratio of boys to girls in a class is 1 : 4. There are 10 boys. How many girls are there?
  9. 9.How many factors does 64 have?
  10. 10.What is 50% of 32?
  11. 11.Round 11.36 to one decimal place. =
  12. 12.If 5 kg of rice costs ₹430, how many kg can you buy for ₹258?
  13. 13.A hostel has enough food for 8 students for 11 days. How many days will the same food last for 22 students?
  14. 14.How many factors does 89 have?
  15. 15.What is 7/8 of 216 litres?
  16. 16.Which is closest to 496 + 796 + 503? (a) 1800 (b) 2000 (c) 1700 (d) 1900
  17. 17.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  18. 18.Saanvi scored 4 marks out of 80 in a test. What percentage did Saanvi score?
  19. 19.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
  20. 20.If 7 cricket balls cost ₹154, how much do 2 cricket balls cost (in ₹)?
  21. 21.(6 + 8) × 3 − 16 =
  22. 22.Round 46.29 to one decimal place. =
  23. 23.What percent of 400 is 48?
  24. 24.27 ÷ 9 × 3 + 3 =
  25. 25.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  26. 26.A car goes 45 km on 3 litres of petrol. How far can it go on 24 litres (in km)?
  27. 27.1.6 × 4 =
  28. 28.If 12 pens cost ₹396, how much do 19 pens cost (in ₹)?
  29. 29.Two tanks hold 10 litres and 35 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  30. 30.Find the LCM of 20 and 15.
  31. 31.7 painters can paint a school in 30 days. How many days would 14 painters take, working at the same speed?
  32. 32.What is the smallest number you must add to 748 so that it divides exactly by 8?
  33. 33.Which is closest to 902 × 50? (Round each number first.) (a) 45000 (b) 450000 (c) 90000 (d) 4500
  34. 34.Find the LCM of 2, 10 and 14.
  35. 35.A car goes 40 km on 2 litres of petrol. How far can it go on 19 litres (in km)?
  36. 36.Which is closest to 1797 ÷ 29? (a) 600 (b) 120 (c) 30 (d) 60
  37. 37.6 × (30 − 15) + 49 ÷ 7 =
  38. 38.A car goes 80 km on 8 litres of petrol. How far can it go on 18 litres (in km)?
  39. 39.How many factors does 61 have?
  40. 40.The HCF of two numbers is 4 and their LCM is 84. One of the numbers is 28. What is the other number?

Answer key

  1. 50
  2. 57240
  3. 60
  4. 208
  5. 38
  6. 423
  7. 72
  8. 40
  9. 7
  10. 16
  11. 11.4
  12. 3
  13. 4
  14. 2
  15. 189
  16. 1800
  17. 18
  18. 5
  19. 45
  20. 44
  21. 26
  22. 46.3
  23. 12
  24. 12
  25. 32
  26. 360
  27. 6.4
  28. 627
  29. 5
  30. 60
  31. 15
  32. 4
  33. 45000
  34. 70
  35. 380
  36. 60
  37. 97
  38. 180
  39. 2
  40. 12

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