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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 134 · 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.If 5 kg of rice costs ₹125, how many kg can you buy for ₹300?
  2. 2.Two tanks hold 240 litres and 90 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  3. 3.Find the third proportional to 4 and 12 (that is, 4 : 12 = 12 : ?).
  4. 4.2.7 × 6 =
  5. 5.What is the smallest number you must take away from 635 so that it divides exactly by 6?
  6. 6.How many factors does 32 have?
  7. 7.1/2 + 5/11 =
  8. 8.Write 11/20 as a percent.
  9. 9.Find the smallest number bigger than 9 that leaves a remainder of 1 when divided by 6, 9 or 5.
  10. 10.8 painters can paint a school in 18 days. How many days would 16 painters take, working at the same speed?
  11. 11.Find the smallest number bigger than 15 that leaves a remainder of 7 when divided by 10, 15 or 9.
  12. 12.Divide ₹80 between Diya and Aditya in the ratio 1 : 4. How much does Aditya get (in ₹)?
  13. 13.Three temple bells ring every 5, 15 and 20 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  14. 14.Find the LCM of 5, 2 and 9.
  15. 15.The ratio of boys to girls in a class is 1 : 2. There are 4 boys. How many girls are there?
  16. 16.Sneha takes 90 seconds and Karan 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?
  17. 17.If 2 kg of rice costs ₹92, how many kg can you buy for ₹368?
  18. 18.Find the third proportional to 8 and 16 (that is, 8 : 16 = 16 : ?).
  19. 19.1/3 − 1/4 =
  20. 20.The ratio of boys to girls in a class is 5 : 1. There are 50 boys. How many girls are there?
  21. 21.What percent of 200 is 90?
  22. 22.Round 98.34 to one decimal place. =
  23. 23.5 painters can paint a school in 17 days. How many days would 17 painters take, working at the same speed?
  24. 24.10.4 ÷ 2 =
  25. 25.Three temple bells ring every 24, 10 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  26. 26.A car goes 225 km on 9 litres of petrol. How far can it go on 29 litres (in km)?
  27. 27.What percent of 20 is 8?
  28. 28.What is 5% of 120?
  29. 29.3/4 − 1/2 =
  30. 30.Three temple bells ring every 18, 9 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  31. 31.Find the third proportional to 9 and 27 (that is, 9 : 27 = 27 : ?).
  32. 32.Vivaan scored 1 marks out of 25 in a test. What percentage did Vivaan score?
  33. 33.Which of these numbers divides exactly by 11? (a) 1969 (b) 7943 (c) 4870 (d) 5246
  34. 34.The HCF of two numbers is 3 and their LCM is 216. One of the numbers is 24. What is the other number?
  35. 35.2.99 + 4.3 =
  36. 36.Find the HCF of 65 and 26.
  37. 37.6 : 7 = 48 : ?
  38. 38.Which is closest to 1805 ÷ 31? (a) 120 (b) 600 (c) 60 (d) 30
  39. 39.Write 1/2 as a percent.
  40. 40.What is 2/3 of ₹33?

Answer key

  1. 12
  2. 30
  3. 36
  4. 16.2
  5. 5
  6. 6
  7. 21/22
  8. 55
  9. 91
  10. 9
  11. 97
  12. 64
  13. 60
  14. 90
  15. 8
  16. 270
  17. 8
  18. 32
  19. 1/12
  20. 10
  21. 45
  22. 98.3
  23. 5
  24. 5.2
  25. 120
  26. 725
  27. 40
  28. 6
  29. 1/4
  30. 72
  31. 81
  32. 4
  33. 1969
  34. 27
  35. 7.29
  36. 13
  37. 56
  38. 60
  39. 50
  40. 22

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