Question

cuboid having Length breadth and height lbh respectively if length is increased by 50% then find the new volume

Answer 1

Step-by-step explanation:

Correct option is C)

Let each side of cuboid is 10 unit.

Then initial volume of the cuboid = length × breath × height

=10×10×10=1000 cubic unit

After increment dimension is

Length =(10+10% of 10)=11

Breadth =(10+20% of 10)=12

Height =(10+50% of 10)=15

Now present volume =11×12×15=1980 cubic unit

Increase in volume =1980−1000=980 cubic unit

Percentage increase in volume =

1000

980

×100=98%

Answer 2

Answer:

1.5lbh

Step-by-step explanation:

let length be l

breadth=b

h=h

volume of cuboid=lxbxh= lbh

new lwngth= 50% more than original

                  = l+50l/100

                  = 1.5l

breadth and volume are same

new volume= 1.5l*b*h

                   = 1.5lbh