wxyz=462

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vishubn: Legendary Member; Posts: 574; Joined: Sun Jun 01, 2008 8:48 am; Location: Bangalore; Thanked: 28 times

by vishubn » Mon Oct 20, 2008 11:35 pm

If w, x, y, and z are integers such that 1 < w < x < y < z and wxyz = 462, then z =?
A. 7
B. 11
C. 14
D. 21
E. 42

Any idea??

Vishu

Source: Beat The GMAT — Problem Solving | Mon Oct 20, 2008 11:35 pm

sudhir3127: Legendary Member; Posts: 829; Joined: Mon Jul 07, 2008 10:09 pm; Location: INDIA; Thanked: 84 times; Followed by:3 members

by sudhir3127 » Tue Oct 21, 2008 12:05 am

vishubn wrote:If w, x, y, and z are integers such that 1 < w < x < y < z and wxyz = 462, then z =?
A. 7
B. 11
C. 14
D. 21
E. 42

Any idea??

Vishu

2*3*7*11= 462

hence Z = 11...
do let me know the source as well as the OA.. hope that helps..

vishubn: Legendary Member; Posts: 574; Joined: Sun Jun 01, 2008 8:48 am; Location: Bangalore; Thanked: 28 times

by vishubn » Tue Oct 21, 2008 12:07 am

Damn!!!

!! i wrote the lcm factors wrong !!

!!

thanks sudhir

vishu

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