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Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 760 · 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.What is the smallest number you must add to 709 so that it divides exactly by 9?
  2. 2.Find the HCF of 75 and 105.
  3. 3.1/4 × 2/11 =
  4. 4.If 4 pencil boxes cost ₹148, how much do 11 pencil boxes cost (in ₹)?
  5. 5.How many factors does 72 have?
  6. 6.What is the smallest number you must take away from 416 so that it divides exactly by 6?
  7. 7.Which is closest to 1805 ÷ 21? (a) 45 (b) 180 (c) 90 (d) 900
  8. 8.A hall floor is 350 cm long and 150 cm wide. It is covered with the largest square tiles that fit exactly. How many tiles are needed?
  9. 9.The ratio of boys to girls in a class is 7 : 1. There are 21 boys. How many girls are there?
  10. 10.If 7 kites cost ₹35, how much do 12 kites cost (in ₹)?
  11. 11.150% of a number is 321. What is the number?
  12. 12.What percent of 250 is 205?
  13. 13.How many factors does 100 have?
  14. 14.18 ÷ 3 × 9 + 15 =
  15. 15.6/10 + 1/4 =
  16. 16.Write 21/25 as a percent.
  17. 17.Which of these numbers divides exactly by 6? (a) 6567 (b) 3737 (c) 8370 (d) 8264
  18. 18.Three temple bells ring every 30, 6 and 8 minutes. They ring together at 9:00 am. After how many minutes will they next ring together?
  19. 19.4/5 × 3/4 =
  20. 20.2/3 of 27 + 7 × 8 =
  21. 21.(11 + 15) × 3 − 28 =
  22. 22.Vivaan scored 4 marks out of 40 in a test. What percentage did Vivaan score?
  23. 23.The ratio of boys to girls in a class is 3 : 1. There are 21 boys. How many girls are there?
  24. 24.Which is closest to 905 + 704 + 397? (a) 2200 (b) 2100 (c) 2000 (d) 1900
  25. 25.60% of a number is 186. What is the number?
  26. 26.A car goes 46 km on 2 litres of petrol. How far can it go on 38 litres (in km)?
  27. 27.What percent of 25 is 13?
  28. 28.How many factors does 28 have?
  29. 29.Find the LCM of 9 and 4.
  30. 30.Find the LCM of 30 and 35.
  31. 31.Find the HCF of 39 and 104.
  32. 32.5.1 × 3 =
  33. 33.Dev scored 6 marks out of 40 in a test. What percentage did Dev score?
  34. 34.Find the smallest number bigger than 8 that leaves a remainder of 1 when divided by 3, 5 or 8.
  35. 35.Which of these numbers divides exactly by 4? (a) 6966 (b) 7597 (c) 9256 (d) 1179
  36. 36.If 5 kg of rice costs ₹255, how many kg can you buy for ₹561?
  37. 37.What is the smallest number you must add to 665 so that it divides exactly by 3?
  38. 38.A hostel has enough food for 12 students for 7 days. How many days will the same food last for 3 students?
  39. 39.What is 30% of 80?
  40. 40.Find the LCM of 8, 14 and 4.

Answer key

  1. 2
  2. 15
  3. 1/22
  4. 407
  5. 12
  6. 2
  7. 90
  8. 21
  9. 3
  10. 60
  11. 214
  12. 82
  13. 9
  14. 69
  15. 17/20
  16. 84
  17. 8370
  18. 120
  19. 3/5
  20. 74
  21. 50
  22. 10
  23. 7
  24. 2000
  25. 310
  26. 874
  27. 52
  28. 6
  29. 36
  30. 210
  31. 13
  32. 15.3
  33. 15
  34. 121
  35. 9256
  36. 11
  37. 1
  38. 28
  39. 24
  40. 56

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