pl solve ths.. exam next week

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gmat20092009: Junior | Next Rank: 30 Posts; Posts: 28; Joined: Sun Jul 19, 2009 6:41 am

by gmat20092009 » Thu Sep 17, 2009 1:22 am

guys i m confused as how to solve this

5^2^2^2 and 5^2^2

pl solve step by step

thanks

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Source: Beat The GMAT — Problem Solving | Thu Sep 17, 2009 1:22 am

sanjana: Master | Next Rank: 500 Posts; Posts: 182; Joined: Sun Aug 02, 2009 7:19 pm; Thanked: 18 times; GMAT Score:680

by sanjana » Thu Sep 17, 2009 1:49 am

5^2^2^2 would be the same as :

(((5^2)^2)^2)

=((5^4)^2)

=(5^8)

=390625

Same for the other one.

is there anything else asked in this question or just this??

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