Question

A verandah of width is 3 m is constructed along the outside of a room of length 9 m and width is 7m . find (a) the area of the verandah (b) the cost of cementing the floor of the verandah at the rate of 15 per sq . m.
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Answer 1

Answer:

12600

Step-by-step explanation:

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