9) The approximate change in the volume of a cube of side x metres caused by increasing the side by 3% is
(A) 0.06 (B) 0.6 (C) 0.09 (D) 0.9
Side of cube increased by 3% = 0.03x m
The volume of cube =
we know that is approximately equal to dy
So,
Hence, the approximate change in volume V of a cube of side x metres caused by increasing the side by 3% is
Hence, (C) is the correct answer