#themathsgurudev

Описание: #themathsgurudev
A tank with rectangular base and rectangular sides open at the top is to be constructed so that its depth is 3m and volume is 75m³. If building of
tank costs Rs 100 per square metre for the base and Rs 50 per square metre for the sides, find the cost of least expensive tank.,
class 12 mathematics, NCERT, CBSE, Applications of derivatives,