← Practice: number skills lesson New set →

Number Skills Practice Worksheet

Quantitative aptitude lesson 10: Practice: number skills · Set 946 · 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 take away from 147 so that it divides exactly by 6?
  2. 2.What is 5% of 440?
  3. 3.What percent of 80 is 32?
  4. 4.What is the smallest number you must add to 511 so that it divides exactly by 3?
  5. 5.Which is closest to 202 + 396 + 801? (a) 1300 (b) 1500 (c) 1600 (d) 1400
  6. 6.The HCF of two numbers is 9 and their LCM is 648. One of the numbers is 72. What is the other number?
  7. 7.Which of these numbers divides exactly by 3? (a) 5563 (b) 8572 (c) 1202 (d) 4374
  8. 8.The HCF of two numbers is 5 and their LCM is 75. One of the numbers is 15. What is the other number?
  9. 9.What is 1/2 of 24 litres?
  10. 10.9/10 − 2/3 =
  11. 11.Two tanks hold 35 litres and 40 litres of milk. What is the biggest can (in litres) that can empty both tanks exactly, with no milk left over?
  12. 12.8 : 4 = 48 : ?
  13. 13.Write 7/10 as a percent.
  14. 14.Which of these numbers divides exactly by 3? (a) 7433 (b) 6255 (c) 6526 (d) 7432
  15. 15.1.3 × 8 =
  16. 16.5.8 × 3 =
  17. 17.3/4 × 6/10 =
  18. 18.How many factors does 80 have?
  19. 19.What is the smallest number you must add to 962 so that it divides exactly by 11?
  20. 20.How many factors does 65 have?
  21. 21.How many factors does 98 have?
  22. 22.(20 + 4) × 3 − 9 =
  23. 23.87.3 ÷ 9 =
  24. 24.What is the smallest number you must add to 263 so that it divides exactly by 13?
  25. 25.6 × (20 − 19) + 30 ÷ 3 =
  26. 26.9 painters can paint a school in 10 days. How many days would 6 painters take, working at the same speed?
  27. 27.What percent of 250 is 45?
  28. 28.8 painters can paint a school in 5 days. How many days would 20 painters take, working at the same speed?
  29. 29.5/7 of 14 + 4 × 9 =
  30. 30.6 : 13 = 42 : ?
  31. 31.If 7 kg of rice costs ₹175, how many kg can you buy for ₹350?
  32. 32.Divide ₹153 between Priya and Zoya in the ratio 2 : 1. How much does Priya get (in ₹)?
  33. 33.(15 + 5) × 9 − 7 =
  34. 34.Find the LCM of 18 and 16.
  35. 35.How many factors does 18 have?
  36. 36.A hostel has enough food for 4 students for 25 days. How many days will the same food last for 20 students?
  37. 37.The ratio of boys to girls in a class is 4 : 7. There are 20 boys. How many girls are there?
  38. 38.Zoya takes 36 seconds and Rohan 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?
  39. 39.What percent of 500 is 15?
  40. 40.76 − 35 ÷ 7 × 9 =

Answer key

  1. 3
  2. 22
  3. 40
  4. 2
  5. 1400
  6. 81
  7. 4374
  8. 25
  9. 12
  10. 7/30
  11. 5
  12. 24
  13. 70
  14. 6255
  15. 10.4
  16. 17.4
  17. 9/20
  18. 10
  19. 6
  20. 4
  21. 6
  22. 63
  23. 9.7
  24. 10
  25. 16
  26. 15
  27. 18
  28. 2
  29. 46
  30. 91
  31. 14
  32. 102
  33. 173
  34. 144
  35. 6
  36. 5
  37. 35
  38. 180
  39. 3
  40. 31

Free quantitative aptitude lessons, practice and worksheets at talentjr.in/quantitative-aptitude