Question

The cost of constructing a wall 8m long, 4m high and 20cm thick at the rate of Rs. 25 per m³ is​

Answer 1

Answer:

Length of wall = 8 m

Breadth of wall = 20 cm = 0.2 m

Height of wall = 4 m

Volume of the wall is

v=l x b xh

v=8 x 0.2 x 4

v=6.4 m^3

Rate is Rs.25 per meter.

So, Cost of the wall is

c= 6.4 x 25

=rs160

Answer 2

Answer:

1640

Step-by-step explanation:

Given=A wall length=8m,breadth=20cn=0.2 and height=4m.

Area of 4 wall=2(l+b) ×h

=2×8.2×4

=65.6m sq

the rate of constructing a wall=25×65.6

=1640