For how many intergers n is 2^n=n^2

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showbu: Master | Next Rank: 500 Posts; Posts: 114; Joined: Tue Dec 23, 2008 5:33 pm

by showbu » Tue Jan 20, 2009 7:03 pm

a. 0
b. 1
c 2
d 3
e more than 3

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Source: Beat The GMAT — Problem Solving | Tue Jan 20, 2009 7:03 pm

piyush_nitt: Master | Next Rank: 500 Posts; Posts: 424; Joined: Sun Dec 07, 2008 5:15 pm; Location: Sydney; Thanked: 12 times

Re: For how many intergers n is 2^n=n^2

by piyush_nitt » Tue Jan 20, 2009 8:42 pm

showbu wrote:a. 0
b. 1
c 2
d 3
e more than 3

IMO C

2 and 4

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showbu: Master | Next Rank: 500 Posts; Posts: 114; Joined: Tue Dec 23, 2008 5:33 pm

Re: For how many intergers n is 2^n=n^2

by showbu » Tue Jan 20, 2009 9:51 pm

showbu wrote:a. 0
b. 1
c 2
d 3
e more than 3

OA Spoiler CodeC

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