Question

leela gave 0.7 of her book collection to a liberary and divide the remaining part equally between two sister. what part of her sister get.

Answer 1

Leela gave 0.7 or 7/10th of her collection to library.

So she is left with 1 - 7/10 = 3/10th of her collection.

Now 3/10th number books are shared equally between sisters.

Each one gets 3/10 × 1/2
= 3/20 th of her collection.

Answer 2

Part of the collection given to library by leela =0.7

Part of books left with her =1-0.7 =0.3

This is divided equal between her two sisters .
Part of collection her sister gets =0.3/2=0.15