Question

Sarika walks half hour on the first day,one by four hour on the second day and follows the same pattern . How long will she walk on the fourth day?

Answer 1

I think 1/4 hour
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Answer 2

sarika walks on first day =
$\frac{1}{2} hours$
next day =
$\frac{1}{4}$
so there is a pattern of
1/2 ,1/4
on ,3rd day = 1/8

on 4th day = 1/16