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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 164 · 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 30% of 580?
  2. 2.What is 5% of 360?
  3. 3.Which is closest to 200 × 28? (Round each number first.) (a) 6000 (b) 12000 (c) 600 (d) 60000
  4. 4.Find the LCM of 14, 2 and 10.
  5. 5.24 − 10 ÷ 5 × 9 =
  6. 6.Aditya scored 41 marks out of 50 in a test. What percentage did Aditya score?
  7. 7.8.1 × 8 =
  8. 8.Find the HCF of 65 and 26.
  9. 9.2/9 × 2/8 =
  10. 10.What is 3/5 of 15 kg?
  11. 11.1.09 + 7.2 =
  12. 12.What percent of 25 is 9?
  13. 13.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 4, 12 or 10.
  14. 14.Find the LCM of 4 and 9.
  15. 15.Round 68.54 to one decimal place. =
  16. 16.A car goes 16 km on 2 litres of petrol. How far can it go on 35 litres (in km)?
  17. 17.Round 82.43 to one decimal place. =
  18. 18.3 × (21 − 1) + 60 ÷ 5 =
  19. 19.8 painters can paint a school in 21 days. How many days would 12 painters take, working at the same speed?
  20. 20.Divide ₹360 between Kabir and Arjun in the ratio 7 : 8. How much does Kabir get (in ₹)?
  21. 21.Divide ₹312 between Pooja and Aditya in the ratio 3 : 5. How much does Aditya get (in ₹)?
  22. 22.A car goes 36 km on 3 litres of petrol. How far can it go on 4 litres (in km)?
  23. 23.The HCF of two numbers is 6 and their LCM is 90. One of the numbers is 18. What is the other number?
  24. 24.A hostel has enough food for 11 students for 12 days. How many days will the same food last for 3 students?
  25. 25.55 ÷ 5 × 8 + 27 =
  26. 26.What is the smallest number you must take away from 635 so that it divides exactly by 3?
  27. 27.15% of a number is 33. What is the number?
  28. 28.Two tanks hold 315 litres and 225 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  29. 29.What is 15% of 40?
  30. 30.What is the smallest number you must take away from 975 so that it divides exactly by 6?
  31. 31.What is 20% of 50?
  32. 32.Priya scored 2 marks out of 20 in a test. What percentage did Priya score?
  33. 33.49 − 12 ÷ 4 × 7 =
  34. 34.If 10 erasers cost ₹80, how much do 13 erasers cost (in ₹)?
  35. 35.6.5 × 2 =
  36. 36.The ratio of boys to girls in a class is 8 : 1. There are 72 boys. How many girls are there?
  37. 37.14 + 11 × 4 − 2 =
  38. 38.7 painters can paint a school in 8 days. How many days would 8 painters take, working at the same speed?
  39. 39.Find the LCM of 6, 4 and 11.
  40. 40.Find the smallest number bigger than 12 that leaves a remainder of 2 when divided by 12, 10 or 8.

Answer key

  1. 174
  2. 18
  3. 6000
  4. 70
  5. 6
  6. 82
  7. 64.8
  8. 13
  9. 1/18
  10. 9
  11. 8.29
  12. 36
  13. 62
  14. 36
  15. 68.5
  16. 280
  17. 82.4
  18. 72
  19. 14
  20. 168
  21. 195
  22. 48
  23. 30
  24. 44
  25. 115
  26. 2
  27. 220
  28. 45
  29. 6
  30. 3
  31. 10
  32. 10
  33. 28
  34. 104
  35. 13
  36. 9
  37. 56
  38. 7
  39. 132
  40. 122

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