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vijaynarayanan
- Senior | Next Rank: 100 Posts
- Posts: 40
- Joined: Sat Jan 30, 2010 10:38 am
st 1 : each of three faces of C is exactly 1/2 redvijaynarayanan wrote:
I feel the answer should be A... can anyone explain why it should be C
No of faces : 6
St 1 leaves out a possiblity about other 3 faces. What if in other 3 sides are partly filled with red??
Insufficient
St 2:
No idea abt red
Combining st 1 & st2 :
No of white faces : 3
No of faces remaining : 6-3 = 3
So the red color should be painted ONLY on this 3 faces.
st 1 gives us the idea, each of three faces of C is exactly 1/2 red
So (1/2) * 3 faces are red
Fraction of red face: (1/2) * 3/ 6
= 1/4
Pick C
