Simple problem with exponents

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sethn23: Junior | Next Rank: 30 Posts; Posts: 14; Joined: Wed Oct 01, 2008 5:59 pm

by sethn23 » Wed Oct 01, 2008 6:09 pm

5^21 * 4^11 = 2 * 10^N what is the value of N?

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Source: Beat The GMAT — Problem Solving | Wed Oct 01, 2008 6:09 pm

cramya: Legendary Member; Posts: 2467; Joined: Thu Aug 28, 2008 6:14 pmFollowed by: 11 members; Thanked: 331 times

by cramya » Wed Oct 01, 2008 6:48 pm

Refer to
https://www.beatthegmat.com/gmat-prep-t19581.html#82463

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sethn23: Junior | Next Rank: 30 Posts; Posts: 14; Joined: Wed Oct 01, 2008 5:59 pm

by sethn23 » Wed Oct 01, 2008 6:52 pm

thanks cramya gotta review those xponent rules.

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