A rectangular room is of length 10m, breadth 6m, and height 3m. The four walls and the roof have to be painted. If the cost of painting is Rs.75 per square metre, what will be the total cost?The area of the windows and doors is 6square meter, which are not to be painted.
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length of room 10 m
breadth of room 6m
height of room 3m
area of four walls
2×(l+b)×h
2×(10+6)×3
2×16×3
96
area of windows 6
96-6
90 sq m
cost. 75×90
6750₹
breadth of room 6m
height of room 3m
area of four walls
2×(l+b)×h
2×(10+6)×3
2×16×3
96
area of windows 6
96-6
90 sq m
cost. 75×90
6750₹
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