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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 696 · 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.Two tanks hold 100 litres and 175 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  2. 2.The HCF of two numbers is 2 and their LCM is 30. One of the numbers is 10. What is the other number?
  3. 3.Two tanks hold 225 litres and 405 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  4. 4.Divide ₹616 between Ishaan and Manav in the ratio 6 : 5. How much does Ishaan get (in ₹)?
  5. 5.Three temple bells ring every 10, 5 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.Divide ₹594 between Manav and Karan in the ratio 9 : 2. How much does Karan get (in ₹)?
  7. 7.How many factors does 83 have?
  8. 8.43 + 4 × 7 − 43 =
  9. 9.Round 95.66 to one decimal place. =
  10. 10.The ratio of boys to girls in a class is 3 : 4. There are 6 boys. How many girls are there?
  11. 11.Priya scored 60 marks out of 80 in a test. What percentage did Priya score?
  12. 12.Divide ₹130 between Kabir and Arjun in the ratio 6 : 7. How much does Arjun get (in ₹)?
  13. 13.4.45 + 5.6 =
  14. 14.Which of these numbers divides exactly by 8? (a) 7986 (b) 9176 (c) 2493 (d) 1094
  15. 15.5/7 − 4/6 =
  16. 16.Divide ₹207 between Dev and Kabir in the ratio 1 : 8. How much does Dev get (in ₹)?
  17. 17.Which is closest to 503 × 91? (Round each number first.) (a) 90000 (b) 4500 (c) 450000 (d) 45000
  18. 18.What is the smallest number you must take away from 333 so that it divides exactly by 4?
  19. 19.Find the HCF of 55 and 77.
  20. 20.(8 + 10) × 5 − 1 =
  21. 21.Which is closest to 2001 ÷ 39? (a) 100 (b) 50 (c) 25 (d) 500
  22. 22.Which is closest to 602 + 204 + 598? (a) 1400 (b) 1300 (c) 1500 (d) 1600
  23. 23.The ratio of boys to girls in a class is 9 : 7. There are 81 boys. How many girls are there?
  24. 24.A hostel has enough food for 8 students for 7 days. How many days will the same food last for 7 students?
  25. 25.Round 71.06 to one decimal place. =
  26. 26.64 ÷ 8 × 7 + 5 =
  27. 27.Ishaan takes 30 seconds and Sneha takes 54 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?
  28. 28.11 painters can paint a school in 23 days. How many days would 23 painters take, working at the same speed?
  29. 29.A car goes 168 km on 12 litres of petrol. How far can it go on 9 litres (in km)?
  30. 30.If 7 kg of rice costs ₹420, how many kg can you buy for ₹900?
  31. 31.Divide ₹495 between Ishaan and Arjun in the ratio 7 : 2. How much does Arjun get (in ₹)?
  32. 32.What percent of 25 is 2?
  33. 33.What is the smallest number you must add to 916 so that it divides exactly by 3?
  34. 34.7 : 11 = 42 : ?
  35. 35.How many factors does 96 have?
  36. 36.Write 3/4 as a percent.
  37. 37.6 × (20 − 6) + 54 ÷ 6 =
  38. 38.7 × (30 − 2) + 60 ÷ 5 =
  39. 39.The ratio of boys to girls in a class is 4 : 3. There are 12 boys. How many girls are there?
  40. 40.3/7 + 1/3 =

Answer key

  1. 25
  2. 6
  3. 45
  4. 336
  5. 30
  6. 108
  7. 2
  8. 28
  9. 95.7
  10. 8
  11. 75
  12. 70
  13. 10.05
  14. 9176
  15. 1/21
  16. 23
  17. 45000
  18. 1
  19. 11
  20. 89
  21. 50
  22. 1400
  23. 63
  24. 8
  25. 71.1
  26. 61
  27. 270
  28. 11
  29. 126
  30. 15
  31. 110
  32. 8
  33. 2
  34. 66
  35. 12
  36. 75
  37. 93
  38. 208
  39. 9
  40. 16/21

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