Question

A rectangular garden of length 12m is surrounded by a 2m wide path.If the area of the garden is 84 meter square and the cost of gravelling is rs 8 per meter square, what is the total cost of gravelling the path

Answer 1

we know that ,
area of rectangle is ,
A =2*(l+b)
and from question
cost of gravelling is rs 8 per meter
therefore total cost is,
84*8=672