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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 923 · 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.Round 13.39 to one decimal place. =
  2. 2.What percent of 50 is 13?
  3. 3.The ratio of boys to girls in a class is 5 : 8. There are 40 boys. How many girls are there?
  4. 4.91 − 32 ÷ 4 × 9 =
  5. 5.If 2 notebooks cost ₹46, how much do 9 notebooks cost (in ₹)?
  6. 6.Write 23/25 as a percent.
  7. 7.75% of a number is 30. What is the number?
  8. 8.Find the third proportional to 9 and 18 (that is, 9 : 18 = 18 : ?).
  9. 9.What is 5/6 of 18 students?
  10. 10.What is the smallest number you must take away from 590 so that it divides exactly by 6?
  11. 11.The HCF of two numbers is 7 and their LCM is 140. One of the numbers is 35. What is the other number?
  12. 12.Which is closest to 600 + 405 + 602? (a) 1600 (b) 1800 (c) 1700 (d) 1500
  13. 13.Which is closest to 802 + 898 + 901? (a) 2700 (b) 2800 (c) 2600 (d) 2500
  14. 14.What is the smallest number you must add to 471 so that it divides exactly by 6?
  15. 15.Round 27.34 to one decimal place. =
  16. 16.(13 + 5) × 4 − 8 =
  17. 17.31 − 16 ÷ 8 × 3 =
  18. 18.Find the LCM of 30 and 12.
  19. 19.Meera takes 45 seconds and Ishaan 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?
  20. 20.What is 60% of 270?
  21. 21.Find the LCM of 40 and 15.
  22. 22.Divide ₹104 between Priya and Pooja in the ratio 9 : 4. How much does Pooja get (in ₹)?
  23. 23.7/8 + 1/7 =
  24. 24.Find the smallest number bigger than 12 that leaves a remainder of 5 when divided by 8, 10 or 12.
  25. 25.Which of these numbers divides exactly by 11? (a) 1070 (b) 1251 (c) 5131 (d) 3069
  26. 26.What is the smallest number you must add to 659 so that it divides exactly by 13?
  27. 27.The HCF of two numbers is 3 and their LCM is 105. One of the numbers is 15. What is the other number?
  28. 28.Write 1/2 as a percent.
  29. 29.3/10 + 3/4 =
  30. 30.What is 40% of 80?
  31. 31.14 + 3 × 3 − 13 =
  32. 32.Find the third proportional to 9 and 45 (that is, 9 : 45 = 45 : ?).
  33. 33.Round 47036 to the nearest hundred.
  34. 34.Which is closest to 995 ÷ 51? (a) 200 (b) 40 (c) 20 (d) 10
  35. 35.The HCF of two numbers is 5 and their LCM is 50. One of the numbers is 10. What is the other number?
  36. 36.18 + 11 × 7 − 10 =
  37. 37.If 3 kg of rice costs ₹147, how many kg can you buy for ₹196?
  38. 38.Round 80.19 to one decimal place. =
  39. 39.Manav takes 45 seconds and Kabir 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?
  40. 40.If 9 kites cost ₹90, how much do 3 kites cost (in ₹)?

Answer key

  1. 13.4
  2. 26
  3. 64
  4. 19
  5. 207
  6. 92
  7. 40
  8. 36
  9. 15
  10. 2
  11. 28
  12. 1600
  13. 2600
  14. 3
  15. 27.3
  16. 64
  17. 25
  18. 60
  19. 180
  20. 162
  21. 120
  22. 32
  23. 57/56
  24. 125
  25. 3069
  26. 4
  27. 21
  28. 50
  29. 21/20
  30. 32
  31. 10
  32. 225
  33. 47000
  34. 20
  35. 25
  36. 85
  37. 4
  38. 80.2
  39. 180
  40. 30

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