Question

wall of length 5m, breadth 2m and height 3m is built by using bricks of length 50cm breadth20cm and height 10cm then the number of bricks required is ______ (1 Point) a] 3000 b] 2000 c] 200 d] 300​

Answer 1

Answer:

Given:

L=5 m, B=4 m, H=3m

⇒Area to be white-washed = Area of cuboid − Area of base.

=2lh+2bh+2lb−lb

=2lh+2bh+lb

=[2×5×3+2×4×3+5×4]m

2

=74m

2

Cost of white washing per m

2

area = Rs.7.50

Cost of white washing 74m

2

area=74×7.50

= Rs.555

Answer 2

Step-by-step explanation:

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