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The temp f=120(2^-at) + 60

after 10 mins given temp is 120, substituting

120-60 = 120(2^-a10)

1/2=2^-10a

10a=1 therefore a= 1/10

now substitute after 30 mins f = 120(2^-3) + 60 = 75

wat is the answer?

by ab78

Sat Oct 11, 2008 11:53 am
Forum: Problem Solving
Topic: Temperature problem
Replies: 4
Views: 1523

Hi

I have been studying for my GMAT for a while now. I have given quite bit of tests where I have score around 660. I know it is not a great score. My strong point has been Quant where I score about 92-99%. I am really weak with my verbal about 60-70%. I gave my GMAT today but for some reason I fell sh...

by ab78

Wed Oct 08, 2008 7:32 pm
Forum: Ask Stacy Blackman
Topic: Hi
Replies: 2
Views: 1669