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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 122 · 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 hall floor is 175 cm long and 50 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  2. 2.58 − 12 ÷ 2 × 7 =
  3. 3.10/11 − 1/7 =
  4. 4.Find the LCM of 6, 9 and 3.
  5. 5.Three temple bells ring every 4, 5 and 15 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  6. 6.Write 1/2 as a percent.
  7. 7.6.1 × 4 =
  8. 8.2 : 9 = 18 : ?
  9. 9.7.7 × 7 =
  10. 10.If 10 pencil boxes cost ₹390, how much do 3 pencil boxes cost (in ₹)?
  11. 11.A hostel has enough food for 11 students for 4 days. How many days will the same food last for 4 students?
  12. 12.A hostel has enough food for 10 students for 21 days. How many days will the same food last for 6 students?
  13. 13.2/11 + 1/10 =
  14. 14.If 9 kg of rice costs ₹198, how many kg can you buy for ₹176?
  15. 15.Three temple bells ring every 18, 15 and 10 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  16. 16.If 8 erasers cost ₹72, how much do 2 erasers cost (in ₹)?
  17. 17.Write 2/5 as a percent.
  18. 18.A car goes 120 km on 10 litres of petrol. How far can it go on 27 litres (in km)?
  19. 19.What is 15% of 180?
  20. 20.75.6 ÷ 9 =
  21. 21.5.53 + 6.8 =
  22. 22.Write 3/20 as a percent.
  23. 23.Find the LCM of 3, 14 and 7.
  24. 24.A car goes 300 km on 12 litres of petrol. How far can it go on 34 litres (in km)?
  25. 25.Kabir takes 40 seconds and Ishaan takes 45 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?
  26. 26.1/4 + 7/11 =
  27. 27.(11 + 16) × 2 − 9 =
  28. 28.2.02 + 8.2 =
  29. 29.Round 54.73 to one decimal place. =
  30. 30.4 × (13 − 3) + 56 ÷ 7 =
  31. 31.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  32. 32.25% of a number is 18. What is the number?
  33. 33.Meera scored 10 marks out of 40 in a test. What percentage did Meera score?
  34. 34.What is 1/2 of 12 litres?
  35. 35.1/3 of 9 + 8 × 3 =
  36. 36.If 5 pens cost ₹125, how much do 9 pens cost (in ₹)?
  37. 37.Three temple bells ring every 4, 18 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  38. 38.2/6 + 3/5 =
  39. 39.7 : 8 = 21 : ?
  40. 40.Which of these numbers divides exactly by 11? (a) 3096 (b) 2489 (c) 4323 (d) 2361

Answer key

  1. 14
  2. 16
  3. 59/77
  4. 18
  5. 60
  6. 50
  7. 24.4
  8. 81
  9. 53.9
  10. 117
  11. 11
  12. 35
  13. 31/110
  14. 8
  15. 90
  16. 18
  17. 40
  18. 324
  19. 27
  20. 8.4
  21. 12.33
  22. 15
  23. 42
  24. 850
  25. 360
  26. 39/44
  27. 45
  28. 10.22
  29. 54.7
  30. 48
  31. 36
  32. 72
  33. 25
  34. 6
  35. 27
  36. 225
  37. 72
  38. 14/15
  39. 24
  40. 4323

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