Applying area measures (story sums). What is the area of the carpet required to completely cover the floor of a room whose length is 4.5m and breadth is 4m? If the cost of the carpet is rupees 150 per sq.cm, what is the cost of carpeting the room?
Answers
Answer:
Area of a rectangle = Length × Breadth
The room is a rectangle , so we need to find the area of the room to find the area of carpet required .
Length of the room = 4.5 m
Breadth of the room = 4 m
Area of the room =
= Length × Breadth
= 4.5 × 4
= 18 sq.m
So we know that the area of the room is 18 sq.m . Let us first change the units in metres to units in centimeters , so that it would be easy for us to find the cost of the total carpet needed .
18 sq.m in cm =
= 18 × 100
= 1800 sq.cm
Cost of carpet per sq.cm = 150 rupees
Cost of carpet for 1800 sq.cm =
= 1800 × 150
= 2,70,000
Therefore , the cost of carpeting the room will be 2,70,000 rupees .
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