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A balcony 2 metre wide is made all around surrounding two adjacent sides of a rectangular room office of size 6 m and 4 m. What is the area of the balcony what is the cost of cementing the balcony if the rate is rupees 250 per metre square?
A balcony 2 metre wide is made all around surrounding two adjacent sides of a rectangular room office of size 6 m and 4 m.
The rate of cementing is rupees 250 per metre square.
We have to find the area of the balcony and the cost of cementing the balcony.
We know that,
The area of a rectangle of length $l$ and breadth $b$ is $lb$.
Area of the office room $=6\times4\ m^2=24\ m^2$.
Length of the room including the width of the balcony $=6+2=8\ m$.
Breadth of the room including the width of the balcony $=4+2=6\ m$.
Area of the room including balcony $=8\times6\ m^2=48\ m^2$.
Area of the balcony $=$ Area of the room including balcony $-$ Area of the room excluding balcony
Cost of cementing $1\ m^2=Rs.\ 250$
Cost of cementing the balcony $=Rs.\ 250\times24$
The total cost of cementing the balcony is Rs. 6000.
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