Easy One

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simplythebest: Junior | Next Rank: 30 Posts; Posts: 22; Joined: Mon Sep 18, 2006 10:17 am

by simplythebest » Wed Jun 06, 2007 2:24 am

The value of (9×10^7)(9×10^8) is closest to which of the following?
A. 10^16 B. 10^17 C. 10^56 D. 10^57 E. 10^58

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Source: Beat The GMAT — Data Sufficiency | Wed Jun 06, 2007 2:24 am

jayhawk2001: Community Manager; Posts: 789; Joined: Sun Jan 28, 2007 3:51 pmFollowed by: 1 member; Location: Silicon valley, California; Thanked: 30 times

Re: Easy One

by jayhawk2001 » Wed Jun 06, 2007 6:17 am

simplythebest wrote:The value of (9×10^7)(9×10^8 ) is closest to which of the following?
A. 10^16 B. 10^17 C. 10^56 D. 10^57 E. 10^58

9*10^7 * 9*10^8 = 81 * 10^15 ~ 10^17

B

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