The cost of constructing a wall 8 m long, 4 m high and 20 cm thick at the rate of Rs. 25 per m3 is
Given,
Length of wall = 8m
Breadth of wall = 4 m
Thickness of wall = 20 cm = 
Volume of wall = 
∵ cost of construction of 1m3 wall = Rs. 25
∴ cost of construction of 
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