Answer:
Explanation:
Given
When video is posted 5 people watched it
Next day number of viewers doubled
Suppose this trend continues i.e. No of viewers doubled each day
So on 2 nd day no of viewers is

On 3rd day , viewers

on n th day , viewers is

So no of viewers in 1 year i.e. on 365 day


(ii)Day on which 640 people seen the video



Therefore

