Two cubes each of volume 125 cm³ are joined end to end. The total surface area of the resulting cuboid is:

Correct option is D

Given:

Two cubes, each of volume 12$$5\text{ cm}^3,$$​ are joined face-to-face to form a cuboid.

Formula Used:

Side of cube a$$=\sqrt[3]{\text{Volume}}$$​

Surface area of a cuboid: S = 2(lw + lh + wh).

Solution:
Side of cube a = $$=\sqrt[3]{125}=5\text{ cm}$$​​

Here l = a = 5; w = a = 5; h = 2a =10.
S =$$2(5\times5+5\times10+5\times10)$$​​
=$$2(25+50+50)=2\times125=250\ \text{cm}^2.$$​​