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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 791 · 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. 1.63 ÷ 9 × 2 + 22 =
  2. 2.9 × (25 − 3) + 24 ÷ 8 =
  3. 3.5.1 × 4 =
  4. 4.25 + 5 × 9 − 11 =
  5. 5.4 : 15 = 12 : ?
  6. 6.Divide ₹286 between Kabir and Zoya in the ratio 7 : 6. How much does Kabir get (in ₹)?
  7. 7.What is the smallest number you must take away from 990 so that it divides exactly by 13?
  8. 8.What is the smallest number you must add to 601 so that it divides exactly by 7?
  9. 9.39 − 40 ÷ 5 × 2 =
  10. 10.Find the third proportional to 5 and 25 (that is, 5 : 25 = 25 : ?).
  11. 11.Two tanks hold 250 litres and 350 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  12. 12.2 × (12 − 9) + 18 ÷ 6 =
  13. 13.Find the HCF of 42 and 24.
  14. 14.What percent of 250 is 195?
  15. 15.Tara scored 44 marks out of 80 in a test. What percentage did Tara score?
  16. 16.Round 5355 to the nearest thousand.
  17. 17.8/12 × 3/5 =
  18. 18.Kavya scored 26 marks out of 40 in a test. What percentage did Kavya score?
  19. 19.What is the smallest number you must add to 358 so that it divides exactly by 7?
  20. 20.6/8 + 3/6 =
  21. 21.2/4 + 9/12 =
  22. 22.What is the smallest number you must add to 879 so that it divides exactly by 8?
  23. 23.Which of these numbers divides exactly by 6? (a) 7774 (b) 1710 (c) 2463 (d) 5177
  24. 24.Find the smallest number bigger than 6 that leaves a remainder of 2 when divided by 3, 5 or 6.
  25. 25.The HCF of two numbers is 5 and their LCM is 140. One of the numbers is 20. What is the other number?
  26. 26.Which of these numbers divides exactly by 4? (a) 3722 (b) 1679 (c) 4551 (d) 9496
  27. 27.The ratio of boys to girls in a class is 6 : 1. There are 12 boys. How many girls are there?
  28. 28.If 3 bottles of juice cost ₹129, how much do 14 bottles of juice cost (in ₹)?
  29. 29.The HCF of two numbers is 9 and their LCM is 54. One of the numbers is 18. What is the other number?
  30. 30.Which of these numbers divides exactly by 9? (a) 5121 (b) 2543 (c) 9312 (d) 4433
  31. 31.Two tanks hold 30 litres and 35 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  32. 32.(14 + 2) × 5 − 29 =
  33. 33.A hostel has enough food for 4 students for 28 days. How many days will the same food last for 7 students?
  34. 34.Find the smallest number bigger than 10 that leaves a remainder of 2 when divided by 3, 6 or 10.
  35. 35.If 7 kg of rice costs ₹504, how many kg can you buy for ₹792?
  36. 36.What is the smallest number you must add to 144 so that it divides exactly by 7?
  37. 37.What percent of 400 is 332?
  38. 38.Divide ₹48 between Arjun and Kavya in the ratio 2 : 1. How much does Arjun get (in ₹)?
  39. 39.Two tanks hold 270 litres and 240 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  40. 40.Find the LCM of 25 and 35.

Answer key

  1. 36
  2. 201
  3. 20.4
  4. 59
  5. 45
  6. 154
  7. 2
  8. 1
  9. 23
  10. 125
  11. 50
  12. 9
  13. 6
  14. 78
  15. 55
  16. 5000
  17. 2/5
  18. 65
  19. 6
  20. 5/4
  21. 5/4
  22. 1
  23. 1710
  24. 32
  25. 35
  26. 9496
  27. 2
  28. 602
  29. 27
  30. 5121
  31. 5
  32. 51
  33. 16
  34. 32
  35. 11
  36. 3
  37. 83
  38. 32
  39. 30
  40. 175

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