MATHEMATICS · Subjective · CBSE · Mathematics · Surface Areas and Volumes · Surface Areas and Volumes
Problem
A wooden cuboid storage box has outer dimensions 80cm×60cm×40cm. The entire outer surface of the box, including all six faces, is to be painted with one coat of paint that costs ₹25 per square metre.
(i) Find the total area that will be covered by the paint.
(ii) Determine the total cost of the painting work.