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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 646 · 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.What percent of 25 is 24?
  2. 2.3 : 7 = 6 : ?
  3. 3.If 12 mangoes cost ₹48, how much do 4 mangoes cost (in ₹)?
  4. 4.Round 78.26 to one decimal place. =
  5. 5.Arjun scored 38 marks out of 50 in a test. What percentage did Arjun score?
  6. 6.Karan scored 20 marks out of 40 in a test. What percentage did Karan score?
  7. 7.Divide ₹210 between Farhan and Isha in the ratio 6 : 1. How much does Farhan get (in ₹)?
  8. 8.Find the LCM of 10, 4 and 6.
  9. 9.A hall floor is 300 cm long and 180 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  10. 10.Round 32327 to the nearest ten.
  11. 11.What is 1/2 of 16 kg?
  12. 12.5/7 × 5/12 =
  13. 13.Divide ₹36 between Karan and Farhan in the ratio 1 : 2. How much does Karan get (in ₹)?
  14. 14.The ratio of boys to girls in a class is 5 : 6. There are 40 boys. How many girls are there?
  15. 15.What is the smallest number you must take away from 553 so that it divides exactly by 11?
  16. 16.Which of these numbers divides exactly by 3? (a) 2789 (b) 2448 (c) 9226 (d) 5044
  17. 17.If 11 mangoes cost ₹429, how much do 16 mangoes cost (in ₹)?
  18. 18.How many factors does 51 have?
  19. 19.Which of these numbers divides exactly by 3? (a) 2756 (b) 1349 (c) 9227 (d) 8814
  20. 20.Find the LCM of 7, 15 and 5.
  21. 21.Diya takes 60 seconds and Ishaan 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?
  22. 22.What is 60% of 120?
  23. 23.Round 55960 to the nearest thousand.
  24. 24.The ratio of boys to girls in a class is 7 : 5. There are 49 boys. How many girls are there?
  25. 25.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 3, 8 or 5.
  26. 26.Three temple bells ring every 5, 10 and 12 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  27. 27.Which is closest to 901 × 39? (Round each number first.) (a) 72000 (b) 3600 (c) 360000 (d) 36000
  28. 28.23 ÷ 5 =
  29. 29.If 12 pencil boxes cost ₹660, how much do 17 pencil boxes cost (in ₹)?
  30. 30.A hostel has enough food for 4 students for 28 days. How many days will the same food last for 8 students?
  31. 31.Which is closest to 598 × 91? (Round each number first.) (a) 54000 (b) 108000 (c) 540000 (d) 5400
  32. 32.The ratio of boys to girls in a class is 7 : 5. There are 56 boys. How many girls are there?
  33. 33.What is 25% of 448?
  34. 34.The HCF of two numbers is 2 and their LCM is 28. One of the numbers is 4. What is the other number?
  35. 35.What percent of 40 is 36?
  36. 36.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  37. 37.Sneha scored 24 marks out of 80 in a test. What percentage did Sneha score?
  38. 38.1/2 of 24 + 7 × 4 =
  39. 39.Find the HCF of 21 and 24.
  40. 40.Which is closest to 1801 ÷ 21? (a) 90 (b) 180 (c) 900 (d) 45

Answer key

  1. 96
  2. 14
  3. 16
  4. 78.3
  5. 76
  6. 50
  7. 180
  8. 60
  9. 15
  10. 32330
  11. 8
  12. 25/84
  13. 12
  14. 48
  15. 3
  16. 2448
  17. 624
  18. 4
  19. 8814
  20. 105
  21. 360
  22. 72
  23. 56000
  24. 35
  25. 121
  26. 60
  27. 36000
  28. 4.6
  29. 935
  30. 14
  31. 54000
  32. 40
  33. 112
  34. 14
  35. 90
  36. 36
  37. 30
  38. 40
  39. 3
  40. 90

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