Question

The cost of constructing a wall 8 m long, 4 m high and 20 cm thick at the rate of Rs. 25 per Square meter is​

Answer 1

Dimensions of the wall are,

Length (l)=8m

Breadth (b)=20cm=0.2m

Height (h)=4m

Volume of the hall,

V=lbh

V=8×4×0.2

V=6.4m

3

Cost of building the wall at the rate of Rs.25/m

3

=25×V

=Rs.(25×6.4)

=Rs.160

∴ The cost of building the wall is Rs.160

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