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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 167 · 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. 1.10% of a number is 13. What is the number?
  2. 2.Find the HCF of 70 and 56.
  3. 3.Three temple bells ring every 8, 6 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  4. 4.What is the smallest number you must take away from 236 so that it divides exactly by 9?
  5. 5.Write 1/2 as a percent.
  6. 6.1/8 of 72 + 4 × 5 =
  7. 7.What is the smallest number you must take away from 801 so that it divides exactly by 13?
  8. 8.A car goes 30 km on 3 litres of petrol. How far can it go on 23 litres (in km)?
  9. 9.Which of these numbers divides exactly by 4? (a) 3365 (b) 5741 (c) 5869 (d) 3324
  10. 10.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  11. 11.Find the HCF of 8 and 28.
  12. 12.What is 120% of 150?
  13. 13.A car goes 75 km on 3 litres of petrol. How far can it go on 25 litres (in km)?
  14. 14.3/5 × 1/4 =
  15. 15.Divide ₹80 between Kavya and Tara in the ratio 9 : 1. How much does Tara get (in ₹)?
  16. 16.Round 46201 to the nearest hundred.
  17. 17.Isha takes 36 seconds and Karan takes 80 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?
  18. 18.Find the HCF of 60 and 72.
  19. 19.3/10 × 2/5 =
  20. 20.Which is closest to 1594 ÷ 41? (a) 20 (b) 40 (c) 400 (d) 80
  21. 21.9 : 13 = 72 : ?
  22. 22.Which of these numbers divides exactly by 3? (a) 5215 (b) 4268 (c) 2300 (d) 4284
  23. 23.2.38 + 8.2 =
  24. 24.What is 1/4 of ₹120?
  25. 25.Which is closest to 899 × 69? (Round each number first.) (a) 630000 (b) 6300 (c) 63000 (d) 126000
  26. 26.Round 29.82 to one decimal place. =
  27. 27.3 painters can paint a school in 16 days. How many days would 24 painters take, working at the same speed?
  28. 28.How many factors does 71 have?
  29. 29.What is the smallest number you must take away from 336 so that it divides exactly by 9?
  30. 30.Write 11/20 as a percent.
  31. 31.What is the smallest number you must add to 442 so that it divides exactly by 9?
  32. 32.Which is closest to 95 + 197 + 303? (a) 800 (b) 600 (c) 500 (d) 700
  33. 33.A hostel has enough food for 5 students for 7 days. How many days will the same food last for 7 students?
  34. 34.How many factors does 61 have?
  35. 35.Three temple bells ring every 15, 6 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  36. 36.The ratio of boys to girls in a class is 9 : 7. There are 18 boys. How many girls are there?
  37. 37.What is the smallest number you must add to 971 so that it divides exactly by 8?
  38. 38.Zoya scored 12 marks out of 80 in a test. What percentage did Zoya score?
  39. 39.Three temple bells ring every 4, 12 and 5 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  40. 40.Three temple bells ring every 10, 24 and 6 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?

Answer key

  1. 130
  2. 14
  3. 120
  4. 2
  5. 50
  6. 29
  7. 8
  8. 230
  9. 3324
  10. 12
  11. 4
  12. 180
  13. 625
  14. 3/20
  15. 8
  16. 46200
  17. 720
  18. 12
  19. 3/25
  20. 40
  21. 104
  22. 4284
  23. 10.58
  24. 30
  25. 63000
  26. 29.8
  27. 2
  28. 2
  29. 3
  30. 55
  31. 8
  32. 600
  33. 5
  34. 2
  35. 90
  36. 14
  37. 5
  38. 15
  39. 60
  40. 120

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