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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 52 · 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.Tara takes 90 seconds and Meera takes 36 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?
  2. 2.10 painters can paint a school in 11 days. How many days would 5 painters take, working at the same speed?
  3. 3.Divide ₹185 between Isha and Sneha in the ratio 4 : 1. How much does Isha get (in ₹)?
  4. 4.Three temple bells ring every 24, 10 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  5. 5.What is 20% of 325?
  6. 6.Which of these numbers divides exactly by 3? (a) 5215 (b) 5362 (c) 9381 (d) 8875
  7. 7.Aarav takes 30 seconds and Nisha takes 72 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?
  8. 8.Find the LCM of 12, 11 and 3.
  9. 9.7.1 × 2 =
  10. 10.(4 + 16) × 2 − 21 =
  11. 11.63 ÷ 9 × 5 + 23 =
  12. 12.Which is closest to 803 + 595 + 602? (a) 2100 (b) 1900 (c) 2000 (d) 2200
  13. 13.7.3 × 6 =
  14. 14.3.46 + 5.2 =
  15. 15.1/3 − 1/4 =
  16. 16.What is 5/9 of 225 litres?
  17. 17.A car goes 69 km on 3 litres of petrol. How far can it go on 24 litres (in km)?
  18. 18.Find the third proportional to 5 and 10 (that is, 5 : 10 = 10 : ?).
  19. 19.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
  20. 20.What is the smallest number you must take away from 911 so that it divides exactly by 7?
  21. 21.A hostel has enough food for 9 students for 16 days. How many days will the same food last for 16 students?
  22. 22.7/10 − 2/5 =
  23. 23.What is 150% of 150?
  24. 24.10.2 ÷ 6 =
  25. 25.Nisha takes 30 seconds and Aditya takes 36 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.What is the smallest number you must add to 694 so that it divides exactly by 7?
  27. 27.Write 1/2 as a percent.
  28. 28.Which is closest to 303 + 696 + 904? (a) 1800 (b) 1900 (c) 2000 (d) 2100
  29. 29.A car goes 34 km on 2 litres of petrol. How far can it go on 23 litres (in km)?
  30. 30.18 + 11 × 2 − 6 =
  31. 31.What is the smallest number you must add to 122 so that it divides exactly by 13?
  32. 32.1/3 of 36 + 3 × 8 =
  33. 33.4 painters can paint a school in 27 days. How many days would 12 painters take, working at the same speed?
  34. 34.Kabir scored 30 marks out of 50 in a test. What percentage did Kabir score?
  35. 35.Find the HCF of 65 and 52.
  36. 36.5 painters can paint a school in 15 days. How many days would 15 painters take, working at the same speed?
  37. 37.Round 42.14 to one decimal place. =
  38. 38.What percent of 50 is 44?
  39. 39.28 ÷ 7 × 8 + 3 =
  40. 40.A car goes 60 km on 5 litres of petrol. How far can it go on 2 litres (in km)?

Answer key

  1. 180
  2. 22
  3. 148
  4. 120
  5. 65
  6. 9381
  7. 360
  8. 132
  9. 14.2
  10. 19
  11. 58
  12. 2000
  13. 43.8
  14. 8.66
  15. 1/12
  16. 125
  17. 552
  18. 20
  19. 45
  20. 1
  21. 9
  22. 3/10
  23. 225
  24. 1.7
  25. 180
  26. 6
  27. 50
  28. 1900
  29. 391
  30. 34
  31. 8
  32. 36
  33. 9
  34. 60
  35. 13
  36. 5
  37. 42.1
  38. 88
  39. 35
  40. 24

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