top button
Flag Notify
    Connect to us
      Facebook Login
      Site Registration Why to Join

    Get Free Puzzle Updates

Facebook Login
Site Registration

How to choose two girls out of 3 boys and 6 girls?

+1 vote
139 views

A group of students has 3 boys and 6 girls. Two are chosen at random to represent the school in a spelling competition. Find the probability that both are girls.

posted Mar 29, 2014 by Salil Agrawal

Share this puzzle
Facebook Share Button Twitter Share Button Google+ Share Button LinkedIn Share Button Multiple Social Share Button

1 Solution

0 votes

Total number of ways to select two students = 9C2 = 36
Total number of ways to select two girls from 6 gals = 6C2 = 15
Probability = 15/36= 5/12

solution Apr 20, 2014 by Priyaa Trippayar Sahasranaman



Similar Puzzles
+1 vote

In a school there are 650 students. The ratio of the boys to that of the girls is 8:5. How many more girls should join the school so that the ratio becomes 4:3

+1 vote

6 playing cards were choosen randomly from the pack getting 2 spades, a heart and 3 clubs. What is the probability of getting a club in the next 6 'choose'?

Contact Us
+91 9880187415
sales@queryhome.net
support@queryhome.net
#470/147, 3rd Floor, 5th Main,
HSR Layout Sector 7,
Bangalore - 560102,
Karnataka INDIA.
QUERY HOME
...