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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 222 · 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. 1.2 × (18 − 7) + 24 ÷ 6 =
  2. 2.The HCF of two numbers is 9 and their LCM is 216. One of the numbers is 72. What is the other number?
  3. 3.If 6 kg of rice costs ₹222, how many kg can you buy for ₹74?
  4. 4.If 7 pens cost ₹308, how much do 13 pens cost (in ₹)?
  5. 5.What is the smallest number you must add to 152 so that it divides exactly by 9?
  6. 6.Find the LCM of 11, 6 and 12.
  7. 7.Round 92072 to the nearest hundred.
  8. 8.How many factors does 85 have?
  9. 9.If 2 notebooks cost ₹112, how much do 14 notebooks cost (in ₹)?
  10. 10.What percent of 25 is 4?
  11. 11.Write 7/50 as a percent.
  12. 12.50% of a number is 203. What is the number?
  13. 13.9/11 + 4/7 =
  14. 14.Divide ₹84 between Kabir and Diya in the ratio 1 : 6. How much does Kabir get (in ₹)?
  15. 15.If 3 kg of rice costs ₹72, how many kg can you buy for ₹96?
  16. 16.Divide ₹583 between Ananya and Arjun in the ratio 2 : 9. How much does Arjun get (in ₹)?
  17. 17.What is 1/5 of 45 students?
  18. 18.2/3 of 21 + 4 × 8 =
  19. 19.Round 22.24 to one decimal place. =
  20. 20.Which is closest to 402 + 205 + 296? (a) 1100 (b) 800 (c) 1000 (d) 900
  21. 21.What is the smallest number you must take away from 534 so that it divides exactly by 8?
  22. 22.Which of these numbers divides exactly by 11? (a) 3762 (b) 2732 (c) 9821 (d) 3525
  23. 23.A hall floor is 480 cm long and 420 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  24. 24.Round 83543 to the nearest hundred.
  25. 25.Three temple bells ring every 20, 4 and 24 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  26. 26.What is 15% of 560?
  27. 27.57 − 27 ÷ 3 × 3 =
  28. 28.The HCF of two numbers is 4 and their LCM is 80. One of the numbers is 20. What is the other number?
  29. 29.Find the third proportional to 5 and 20 (that is, 5 : 20 = 20 : ?).
  30. 30.What percent of 400 is 196?
  31. 31.Find the third proportional to 5 and 15 (that is, 5 : 15 = 15 : ?).
  32. 32.If 4 pens cost ₹172, how much do 9 pens cost (in ₹)?
  33. 33.Find the LCM of 2, 10 and 15.
  34. 34.Two tanks hold 15 litres and 25 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  35. 35.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?
  36. 36.A hall floor is 320 cm long and 200 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  37. 37.Write 43/50 as a percent.
  38. 38.Find the smallest number bigger than 12 that leaves a remainder of 5 when divided by 12, 6 or 8.
  39. 39.Which is closest to 402 × 51? (Round each number first.) (a) 2000 (b) 20000 (c) 200000 (d) 40000
  40. 40.Divide ₹143 between Kabir and Ananya in the ratio 9 : 4. How much does Ananya get (in ₹)?

Answer key

  1. 26
  2. 27
  3. 2
  4. 572
  5. 1
  6. 132
  7. 92100
  8. 4
  9. 784
  10. 16
  11. 14
  12. 406
  13. 107/77
  14. 12
  15. 4
  16. 477
  17. 9
  18. 46
  19. 22.2
  20. 900
  21. 6
  22. 3762
  23. 56
  24. 83500
  25. 120
  26. 84
  27. 30
  28. 16
  29. 80
  30. 49
  31. 45
  32. 387
  33. 30
  34. 5
  35. 15
  36. 40
  37. 86
  38. 29
  39. 20000
  40. 44

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