a verandah of width 2.25 m is constructed all along outside a room which is 5.5 m long and 4m wide find: i) the area of verandah ii) the cost of cementing the floor of the verandah at the rate of ₹200 per m^2
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Answered by
21
Given, Length of room = 5.5m, Width of room = 4m, Width of verandah which is constructed all along outside of room = 2.25m, Cost of cementing of verandha = Rs 200 per m2
Therefore, Length of room with verandah
=
5.5
m
+
2.25
m
+
2.25
m
=
10
m
Width of room with verandah
=
4
m
+
2.25
m
+
2.25
m
=
8.5
m
Area of room = Length
×
width
=
5.5
×
4
=
22.0
m2
Area of room with verandah = Length
×
Width
=
10
×
8.5
=
85
m2
Area of verandah = Area of room with verandah — Area of room
= 85m2 —22m2 = 63 m2
Cost of cementing of verandah = Area × Rate
R
s
.
200
×
63
=
R
s
.
12600
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