query....

can someone help me out on this..

x<y<z are odd integers,are they consecutive odd integers?
1)z-x=4
2)y is the avg of x and z

answer is a,why is it not d?

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agoyal2: Senior | Next Rank: 100 Posts; Posts: 59; Joined: Fri Feb 29, 2008 9:00 am; Thanked: 4 times

by agoyal2 » Sun Jun 07, 2009 6:34 am

Its not D because:

x, y, z can be 1, 3, 5 or 3, 7, 11 for y = (x+z)/2
First case they are consecutive odd integers while in the second case they are not.

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