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If the perimeter of a room is 28 m and its height is 2.5 m, then the cost of white washing its walls at the rate of 5 per square meter is
If the perimeter of a room is 28 m and its height is 2.5 m, then the cost of white washing its walls at the rate of 5 per square meter is
a
Rs.250
b
Rs.350
c
Rs.450
d
Rs.550
detailed solution
Correct option is B
Perimeter of room
Height
L.S.A.
Cost of white washing
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