A rectangle field is twice as long as it's breadth.A path of uniform width 2m is running inside the field b. If the cost of constructing the path at Rs21,50per.sq meter is Rs7396 , find the area of field.
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Answer:
let, breadth = x.
length = 2x.
Total cost = 7396
per meter^2 cost = 21.50
Breadth of path = 2 m.
area of road = 2 * 2 * 2x + 2 * 2*(x-4)
= 8x + 4x - 16
= 12x - 16
so, 12x - 16 = 344
or, 12x = 360
or, x = 30
breadth = 30
length = 60
area of field = 60 * 30
= 1800 m^2
Step-by-step explanation:
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