RRB Group D 13-Dec-2018 Shift 2 Solved Paper

Question : 66 of 100

Marks: +1, -0

When water freezes its volume increases by10.1 %. Calculate the percentage reduction of the volume when this ice melts

Solution:

Let original volumes=

x

increased volume

=x+10.1%

x=1.101x

% reduction

={1.101x-x}/{1.01x}×100

={0.101x}/{0.101x}×100={10.1}/{1.101}=9.17≃9 2/{11}

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