Question

In a cuboid if length is increased by 63.63%
and breadth is decreased by 41%by how
much % the height should be changed that
the volume remains constant?​

Answer 1

Answer:

3.46

Step-by-step explanation:

basic concepts of percentage

Answer 2

The change in volume is increased by 3.83 percent (%).

Step-by-step explanation:

Let the length, breadth and height of cuboid = l, b and h

To find, the change in volume = ?

∴ The volume of cuboid = lbh

The length of cuboid increased by 63.63 % = 1.6363l and

The breadth of cuboid decreased by 41 % = 0.59b

According to question,

lbh = 1.6363l (0.59b)(h)

⇒ h = 0.9617h

⇒ h = 1 - 0.9617

⇒ h = 3.83

Thus, the change in volume is increased by 3.83 percent (%).