Ascent Education Home
Home | Question Bank | Top B-Schools | Mock CAT Tests | GD-PI | TANCET 2010 Classes | Contact us
Ascent's Courses
• CAT 2016 Classes
• TANCET 2016 Classes @ Chennai
• XAT 2016 Classes @ Chennai
• TANCET Y! Groups
• GRE-GMAT
• US B Schools
• Faculty List
• Question A Day
Business Partnership
Jobs @ Ascent
Testimonials
Success Stories

Permutation and Combination - Quant/Math - CAT 2013

View Archives
  1. Algebra
  2. Progressions
  3. Averages
  4. Clocks and Calendars
  5. Data Sufficiency
  6. English Grammar
  7. Function
  8. Geometry
  9. Coordinate Geometry
  10. Interest
  11. Mensuration
  12. Mixtures & Alligations
  13. Number System
  14. Percentages
  15. Permutation & Combination
  16. Pipes & Cisterns And Work & Time
  17. Probability
  18. Profit & Loss
  19. Races
  20. Ratio, Proportion
  21. Speed, Time & Distance
  22. Trigonometry
  23. Miscellaneous
  24. General Knowledge
Question 4 the day: November 18, 2003

The question for the day is from the topic of Permutation and Combination.
Badri has 9 pairs of dark Blue socks and 9 pairs of Black socks. He keeps them all in a same bag. If he picks out three socks at random what is the probability he will get a matching pair?

(1) (2*9C2 * 9C1) / 18C3 (2) (9C2 * 9C1) / 18C3
(3) 1 (4) None of these
Correct Answer - (3)
Solution:


If he picks any of the three socks invariably any two of them should match. Hence the probability is 1.




› Page top        

  Home | Question Bank | Top B-Schools | US B-Schools | GD-PI | Forums | GRE Preparation Chennai | Doubt Fire
  © 2002 - 10 ASCENT Education all rights reserved.