1. A rectangular garden of length 12m is surrounded by a 2m wide path. If the area of the garden is 84 m² and the cost of gravelling is Rs.8 per m², what is the total cost of gravelling the path ?( in Rs.)
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By: anil on 05 May 2019 01.21 am
Length of rectangular garden = 12 m Area of garden = $$12 imes b = 84$$ => $$b = frac{84}{12} = 7$$ m Length of rectangular garden including path = $$12 + 2 + 2 = 16$$ m Breadth of rectangular garden including path = $$7 + 2 + 2 = 11$$ m Area of rectangular garden including path = $$16 imes 11 = 176 m^2$$ => Area of path = $$176 - 84 = 92 m^2$$ $$ herefore$$ Costt of gravelling the path = $$92 imes 8$$ = Rs. $$736$$
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