A compound wall is built around a rectangular plot of land .The outer dimension of wall is 25m x 20m .The wide of the wall is 25cm and the height of the wall is 3m.
a) Find the cross sectional area of the wall.
b) If the dimension of bricks are 30cm x 25cm x20cm then find the number of bricks used to construct the wall.
c) The labour of constructing the wall is Rs.12000 and cost of 1000 bricks is Rs. 12000 ,find the total cost of constructing wall.
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