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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 482 · 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. 1.150% of a number is 714. What is the number?
  2. 2.Nisha scored 15 marks out of 20 in a test. What percentage did Nisha score?
  3. 3.Arjun takes 45 seconds and Meera 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?
  4. 4.If 7 kites cost ₹336, how much do 4 kites cost (in ₹)?
  5. 5.If 8 kg of rice costs ₹656, how many kg can you buy for ₹410?
  6. 6.47 + 6 × 6 − 6 =
  7. 7.Find the LCM of 10, 6 and 7.
  8. 8.27 − 6 ÷ 2 × 8 =
  9. 9.What percent of 40 is 28?
  10. 10.Which is closest to 595 + 499 + 495? (a) 1800 (b) 1500 (c) 1700 (d) 1600
  11. 11.Two tanks hold 120 litres and 210 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  12. 12.Find the third proportional to 3 and 6 (that is, 3 : 6 = 6 : ?).
  13. 13.Find the HCF of 24 and 16.
  14. 14.150% of a number is 333. What is the number?
  15. 15.4.39 + 1.1 =
  16. 16.Three temple bells ring every 9, 15 and 30 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  17. 17.How many factors does 28 have?
  18. 18.The HCF of two numbers is 6 and their LCM is 84. One of the numbers is 42. What is the other number?
  19. 19.Find the LCM of 10 and 18.
  20. 20.1/3 + 4/11 =
  21. 21.33 + 3 × 10 − 18 =
  22. 22.What is 75% of 432?
  23. 23.What is the smallest number you must take away from 853 so that it divides exactly by 3?
  24. 24.Round 18.89 to one decimal place. =
  25. 25.50 + 2 × 6 − 14 =
  26. 26.If 11 kites cost ₹110, how much do 14 kites cost (in ₹)?
  27. 27.(2 + 11) × 8 − 3 =
  28. 28.A hostel has enough food for 12 students for 5 days. How many days will the same food last for 6 students?
  29. 29.Two tanks hold 320 litres and 360 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  30. 30.A car goes 60 km on 5 litres of petrol. How far can it go on 40 litres (in km)?
  31. 31.Which is closest to 296 + 401 + 195? (a) 800 (b) 1100 (c) 1000 (d) 900
  32. 32.Write 1/2 as a percent.
  33. 33.What percent of 25 is 16?
  34. 34.Which is closest to 397 + 600 + 696? (a) 1600 (b) 1800 (c) 1900 (d) 1700
  35. 35.Divide ₹150 between Karan and Nisha in the ratio 1 : 4. How much does Nisha get (in ₹)?
  36. 36.Tara takes 72 seconds and Nisha 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?
  37. 37.1/2 + 5/11 =
  38. 38.3/11 × 2/3 =
  39. 39.Diya scored 11 marks out of 20 in a test. What percentage did Diya score?
  40. 40.Find the LCM of 8, 10 and 2.

Answer key

  1. 476
  2. 75
  3. 720
  4. 192
  5. 5
  6. 77
  7. 210
  8. 3
  9. 70
  10. 1600
  11. 30
  12. 12
  13. 8
  14. 222
  15. 5.49
  16. 90
  17. 6
  18. 12
  19. 90
  20. 23/33
  21. 45
  22. 324
  23. 1
  24. 18.9
  25. 48
  26. 140
  27. 101
  28. 10
  29. 40
  30. 480
  31. 900
  32. 50
  33. 64
  34. 1700
  35. 120
  36. 360
  37. 21/22
  38. 2/11
  39. 55
  40. 40

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