Question

a water storage tank is in the form of a cube. when it is full of water, the volume of water is 15.625 m3. if its present depth is 1.2 m,find the volume of water used from the tank and also find its ratio with the volume of remaining water in the tank

Answer 1

volume of water tank.
=15.625cm3
volume of cube=(side)3
(side)^3= 15.625
sq.root on 15.625
side= 2.5m
New cuboid is formed.
length =2.5m
breadth =2.5m
height =1.2m
volume of cuboid
= l×b×h
volume=2.5x2.5x12/10
volume=7.5m3
water used= total volume - new volume
15.625 - 7.5= 
8.125 m3 volume of water was used...
ratio of total volume with new volume
=total vol./New volome
=15.625/8.125
=25/13
=25:13.

Answer 2

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