a door of length 2m and breadth1 m is fitted in a wall. the length of the wall is 4.5 m and the breadth is 3.6 m. find the cost of white washing the wall if the rate of white washing the wall is 20 per m square.
Answers
Answered by
4
Area of wall=l×b
=>4.5×3.6
=>16.2m²
===
===
Area of door=l×b
=>2×1
=>2m²
====
====
====
Cost of painting only wall(not door)
So,
Area of wall=16.2-2
=>14.2m²
Cost=>14.2×20
=>rs.284
=>4.5×3.6
=>16.2m²
===
===
Area of door=l×b
=>2×1
=>2m²
====
====
====
Cost of painting only wall(not door)
So,
Area of wall=16.2-2
=>14.2m²
Cost=>14.2×20
=>rs.284
Answered by
5
Area of P V wall without door=
Area of wall - area of door
4.5*3.6-2*1
16.2-2
=14.2m
Cost of white washing the wall=14.2*20
=RS284
Area of wall - area of door
4.5*3.6-2*1
16.2-2
=14.2m
Cost of white washing the wall=14.2*20
=RS284
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