Question

The Length of the floor of room is two times its breadth and the perimeter of the floor is 48 m. Find the cost of paving marbles on the floor at Rs 125 per sq.metre

Answer 1

Step-by-step explanation:

let us assume the breadth of the room to be b.

Then the corresponding length of the room will be l=2b.........(i)

We are the perimeter of the room to be 48.

According to the equation of perimeter of a rectangle which is 2(l+b),

we get 48= 2(l+b).

Therefore 48= 2(2b+b). from eqn (i)

24=3b

So we have the breadth of the room, b to be 8m.

The length of the room is 16m.

The total area of the floor is lxb=16x8= 128m².

given the cost of paving marbles is 125 per metre sq.,

the cost of paving marbles on an area of 128m² is 128 = 1.024 Rs

125

Answer 2

Answer:

we get 48= 2(l+b). So we have the breadth of the room, b to be 8m. The length of the room is 16m. The total area of the floor is lxb=16x8= 128m².

Step-by-step explanation:

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