Question

Length, breadth and height of a cuboid is in the ratio 1:3:7. Volume of the cuboid is 27 m3. If the length is doubled and breadth & height are halved, then what is the change in the volume of the cuboid?

Answer 1

1x+3x+7x=27

11x=27

X=27/11

X=2.45

doubled length , breadth and height:-

2*2.45

6*2.45

14*2.45

volume = 1,646.4