Question
Mathematics Question on Surface Areas and Volumes
From a square of side 30 cm the squares of side x cm is cut off to make a cuboid of maximum volume. The surface area of cuboid with open top is?
A
400 cm2
B
464 cm2
C
800 cm2
D
900 cm2
Answer
800 cm2
Explanation
Solution
The correct option is (C): 800 cm2