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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 426 · 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.A car goes 168 km on 8 litres of petrol. How far can it go on 5 litres (in km)?
  2. 2.How many factors does 52 have?
  3. 3.A hostel has enough food for 8 students for 28 days. How many days will the same food last for 14 students?
  4. 4.3/5 × 10/11 =
  5. 5.3/5 + 3/6 =
  6. 6.Three temple bells ring every 30, 9 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  7. 7.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  8. 8.1/9 of 81 + 4 × 5 =
  9. 9.27 + 3 × 9 − 13 =
  10. 10.(8 + 16) × 6 − 17 =
  11. 11.What is the smallest number you must take away from 159 so that it divides exactly by 8?
  12. 12.Divide ₹200 between Aarav and Vivaan in the ratio 7 : 3. How much does Aarav get (in ₹)?
  13. 13.A car goes 150 km on 6 litres of petrol. How far can it go on 37 litres (in km)?
  14. 14.Divide ₹144 between Rahul and Diya in the ratio 1 : 3. How much does Rahul get (in ₹)?
  15. 15.Divide ₹360 between Pooja and Rohan in the ratio 1 : 9. How much does Pooja get (in ₹)?
  16. 16.12% of a number is 66. What is the number?
  17. 17.Find the smallest number bigger than 9 that leaves a remainder of 2 when divided by 3, 9 or 4.
  18. 18.If 8 kg of rice costs ₹216, how many kg can you buy for ₹135?
  19. 19.What is 40% of 585?
  20. 20.Which is closest to 896 × 38? (Round each number first.) (a) 360000 (b) 3600 (c) 72000 (d) 36000
  21. 21.Find the LCM of 7 and 4.
  22. 22.What percent of 250 is 145?
  23. 23.5.55 + 5.8 =
  24. 24.Find the LCM of 4 and 7.
  25. 25.Two tanks hold 200 litres and 280 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  26. 26.6.2 × 5 =
  27. 27.Arjun scored 3 marks out of 50 in a test. What percentage did Arjun score?
  28. 28.Arjun takes 30 seconds and Aditya takes 40 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?
  29. 29.Write 3/20 as a percent.
  30. 30.Which is closest to 2392 ÷ 31? (a) 800 (b) 160 (c) 40 (d) 80
  31. 31.A hall floor is 360 cm long and 135 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  32. 32.Divide ₹135 between Zoya and Aarav in the ratio 7 : 2. How much does Zoya get (in ₹)?
  33. 33.How many factors does 17 have?
  34. 34.12 : 15 = 72 : ?
  35. 35.Divide ₹35 between Tara and Rahul in the ratio 2 : 5. How much does Rahul get (in ₹)?
  36. 36.Divide ₹168 between Isha and Karan in the ratio 4 : 3. How much does Karan get (in ₹)?
  37. 37.Which is closest to 897 × 30? (Round each number first.) (a) 54000 (b) 2700 (c) 270000 (d) 27000
  38. 38.Which is closest to 791 ÷ 39? (a) 40 (b) 200 (c) 20 (d) 10
  39. 39.Three temple bells ring every 6, 10 and 4 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.Divide ₹154 between Arjun and Manav in the ratio 8 : 3. How much does Manav get (in ₹)?

Answer key

  1. 105
  2. 6
  3. 16
  4. 6/11
  5. 11/10
  6. 90
  7. 20
  8. 29
  9. 41
  10. 127
  11. 7
  12. 140
  13. 925
  14. 36
  15. 36
  16. 550
  17. 38
  18. 5
  19. 234
  20. 36000
  21. 28
  22. 58
  23. 11.35
  24. 28
  25. 40
  26. 31
  27. 6
  28. 120
  29. 15
  30. 80
  31. 24
  32. 105
  33. 2
  34. 90
  35. 25
  36. 72
  37. 27000
  38. 20
  39. 60
  40. 42

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