Question

the floor of a rectangular hall has perimeter 120m. if the cost of painting the four walls at rate of 10msq is Rs.6000 find height of hall

Answer 1

the answer is simple:
we know that perimeter=120m
we know that cost of painting '4 walls' = 6000rs
we know that cost per msq=10
h be height of wall
sqmt to be painted is 120 * h

cost of paint = 120*h * 10 = 6000

h = 6000/(120*10) = 5 meter

Answer 2

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