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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 271 · 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.Find the LCM of 13, 12 and 6.
  2. 2.2/5 × 3/11 =
  3. 3.If 5 mangoes cost ₹190, how much do 9 mangoes cost (in ₹)?
  4. 4.The ratio of boys to girls in a class is 4 : 3. There are 20 boys. How many girls are there?
  5. 5.Vivaan takes 30 seconds and Diya 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?
  6. 6.4/9 + 3/4 =
  7. 7.Round 75954 to the nearest hundred.
  8. 8.Manav scored 11 marks out of 25 in a test. What percentage did Manav score?
  9. 9.What is 150% of 344?
  10. 10.Divide ₹240 between Kabir and Isha in the ratio 2 : 3. How much does Isha get (in ₹)?
  11. 11.What percent of 20 is 5?
  12. 12.Find the third proportional to 2 and 6 (that is, 2 : 6 = 6 : ?).
  13. 13.Two tanks hold 360 litres and 320 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  14. 14.Two tanks hold 35 litres and 10 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  15. 15.150% of a number is 888. What is the number?
  16. 16.1/2 of 22 + 8 × 4 =
  17. 17.What is the smallest number you must add to 435 so that it divides exactly by 7?
  18. 18.The HCF of two numbers is 8 and their LCM is 192. One of the numbers is 64. What is the other number?
  19. 19.What is the smallest number you must add to 887 so that it divides exactly by 8?
  20. 20.If 3 mangoes cost ₹33, how much do 8 mangoes cost (in ₹)?
  21. 21.Isha takes 90 seconds and Sneha takes 80 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.Find the smallest number bigger than 15 that leaves a remainder of 2 when divided by 10, 15 or 4.
  23. 23.A hall floor is 150 cm long and 90 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  24. 24.Find the LCM of 2, 12 and 3.
  25. 25.The ratio of boys to girls in a class is 5 : 2. There are 45 boys. How many girls are there?
  26. 26.10 ÷ 2 × 4 + 5 =
  27. 27.20 + 5 × 4 − 2 =
  28. 28.Divide ₹228 between Ananya and Diya in the ratio 1 : 5. How much does Diya get (in ₹)?
  29. 29.2.5 × 6 =
  30. 30.Find the HCF of 60 and 105.
  31. 31.What is 10% of 290?
  32. 32.Find the LCM of 21 and 15.
  33. 33.What is 12% of 400?
  34. 34.39 + 7 × 12 − 17 =
  35. 35.Divide ₹238 between Aditya and Vivaan in the ratio 9 : 5. How much does Aditya get (in ₹)?
  36. 36.Find the HCF of 16 and 18.
  37. 37.The HCF of two numbers is 8 and their LCM is 112. One of the numbers is 56. What is the other number?
  38. 38.4/6 − 1/2 =
  39. 39.5% of a number is 24. What is the number?
  40. 40.What is the smallest number you must take away from 615 so that it divides exactly by 8?

Answer key

  1. 156
  2. 6/55
  3. 342
  4. 15
  5. 270
  6. 43/36
  7. 76000
  8. 44
  9. 516
  10. 144
  11. 25
  12. 18
  13. 40
  14. 5
  15. 592
  16. 43
  17. 6
  18. 24
  19. 1
  20. 88
  21. 720
  22. 62
  23. 15
  24. 12
  25. 18
  26. 25
  27. 38
  28. 190
  29. 15
  30. 15
  31. 29
  32. 105
  33. 48
  34. 106
  35. 153
  36. 2
  37. 16
  38. 1/6
  39. 480
  40. 7

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