Question

A metal Cuboid is of dimensions 50 cm 10cm and 20 cm . If the weight of 1 cubic cm of the metal is 8 grams , find the weight of the metal cuboid in kilograms

Answer 1

$l = 50cm \\ b = 10cm \\ h = 20cm \\ \\ volume = l \times b \times h \\ = 20 \times 10 \times 50 \\ = 200 \times 50 \\ = 10000 {cm}^{3} \\ weight = 10000 \times 8 \\ = 80000g = 80kg$