The length & breadth of a cuboid are increased by 15%
& 25% respectively. Find the % change in the volume
of it, if the height is decreased by 30%
(a) 0.625% 0) 6.25% (c) 62.5% (d) 37.5%
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Answer:
- length=l
breadth=b
height=h
volume (v1)=l*b*h
2.
length=115l/100
breadth=125b/100
height=70h/100
volume (v2)=(115l/100)*(125b/100)*(70h/100)
=1.00625l*b*h
now...
increased volume%=( 1.00625-1)/1*100
=0.625%
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