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A lily pad doubles in size each day. If it takes 28 days for the lily pad to cover the entire pond, how many days will it take to cover one-fourth of the pond?

 Aug 2, 2018
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A lily pad doubles in size each day. If it takes 28 days for the lily pad to cover the entire pond, how many days will it take to cover one-fourth of the pond?

 

T0=1

T1=2

T2=4

Tn=2^n

T28=2^28 

 

find n such that  Tn=(2^28)/4 = 2^26

 

26 days. Assuming that there is just 1 pad to start with.

 Aug 2, 2018

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