of A verandah 2.5 m wide is constructed all along the outside of a hall 15 m long and 10
m wide. Find the cost of cementing the floor of this verandah at the rate of RS.16 per
square meter.
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Answer:
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 sq.m
∴, Length of room with verandah=5.5+2.25+2.25=10m
Width of room with verandah=4+2.25+2.25=8.5m
Area of room=Length×Width=5.5×4=22m
2
Area of room with verandah= Length×Width=10×8.5=85m
2
Area of verandah=Area of room with verandah−Area of room=85−22=63m
2
Cost of cementing of verandah=Area×Rate=63×Rs.200=Rs.12600
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