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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 448 · 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 ₹265, how many kg can you buy for ₹795?
  2. 2.Three temple bells ring every 4, 8 and 9 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  3. 3.Divide ₹369 between Tara and Zoya in the ratio 7 : 2. How much does Zoya get (in ₹)?
  4. 4.Write 9/10 as a percent.
  5. 5.The ratio of boys to girls in a class is 4 : 1. There are 20 boys. How many girls are there?
  6. 6.Find the smallest number bigger than 15 that leaves a remainder of 3 when divided by 12, 15 or 4.
  7. 7.How many factors does 26 have?
  8. 8.The HCF of two numbers is 3 and their LCM is 45. One of the numbers is 9. What is the other number?
  9. 9.What percent of 400 is 160?
  10. 10.33 ÷ 3 × 9 + 13 =
  11. 11.What percent of 200 is 178?
  12. 12.Kabir takes 36 seconds and Nisha takes 60 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?
  13. 13.Find the LCM of 2, 9 and 4.
  14. 14.Which of these numbers divides exactly by 9? (a) 9155 (b) 7969 (c) 5643 (d) 3247
  15. 15.If 12 kites cost ₹216, how much do 18 kites cost (in ₹)?
  16. 16.6/9 + 1/2 =
  17. 17.Kavya takes 36 seconds and Arjun takes 48 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.Round 61.07 to one decimal place. =
  19. 19.If 6 kg of rice costs ₹174, how many kg can you buy for ₹87?
  20. 20.Find the LCM of 25 and 20.
  21. 21.Two tanks hold 280 litres and 240 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  22. 22.4 painters can paint a school in 18 days. How many days would 24 painters take, working at the same speed?
  23. 23.Which of these numbers divides exactly by 3? (a) 2528 (b) 6295 (c) 4663 (d) 8580
  24. 24.How many factors does 70 have?
  25. 25.Find the third proportional to 9 and 36 (that is, 9 : 36 = 36 : ?).
  26. 26.Which is closest to 1798 ÷ 19? (a) 180 (b) 900 (c) 45 (d) 90
  27. 27.Sneha scored 32 marks out of 40 in a test. What percentage did Sneha score?
  28. 28.3/8 of 48 + 5 × 6 =
  29. 29.Find the HCF of 48 and 60.
  30. 30.Find the HCF of 30 and 42.
  31. 31.If 4 kg of rice costs ₹260, how many kg can you buy for ₹910?
  32. 32.How many factors does 98 have?
  33. 33.9 painters can paint a school in 15 days. How many days would 3 painters take, working at the same speed?
  34. 34.Find the third proportional to 2 and 8 (that is, 2 : 8 = 8 : ?).
  35. 35.What is the smallest number you must add to 283 so that it divides exactly by 7?
  36. 36.If 7 erasers cost ₹28, how much do 6 erasers cost (in ₹)?
  37. 37.Divide ₹294 between Rohan and Aarav in the ratio 4 : 3. How much does Aarav get (in ₹)?
  38. 38.Find the third proportional to 7 and 28 (that is, 7 : 28 = 28 : ?).
  39. 39.What is the smallest number you must take away from 455 so that it divides exactly by 3?
  40. 40.Which of these numbers divides exactly by 11? (a) 9322 (b) 5305 (c) 6075 (d) 9988

Answer key

  1. 15
  2. 72
  3. 82
  4. 90
  5. 5
  6. 63
  7. 4
  8. 15
  9. 40
  10. 112
  11. 89
  12. 180
  13. 36
  14. 5643
  15. 324
  16. 7/6
  17. 144
  18. 61.1
  19. 3
  20. 100
  21. 40
  22. 3
  23. 8580
  24. 8
  25. 144
  26. 90
  27. 80
  28. 48
  29. 12
  30. 6
  31. 14
  32. 6
  33. 45
  34. 32
  35. 4
  36. 24
  37. 126
  38. 112
  39. 2
  40. 9988

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