Question

find the cost of flooring the verandah at the rate of Rs.15 per m² if the length of the floor is thrice its breadth and its perimeter is 40m​

Answer 1

Answer:

p of rec=(3x+x)2

40=8x

5=x. 3x=15

a of rec=15*5

=75m²

cost of flooring=75*15

=Rs1125