Question

11. The cost of carpeting a room 30 metres long was Rs. 150, but if the breadth ha
been 5 metres less than it was, the expenses would have been Rs. 120. Find the breadt
of the room.
field whose side is 6 Hm is surrounded by a path 20 metres wide. Fin​

Answer 1

Answer:

Bro I got the answer

According To The Question..

Original Length = 30 m

Cost of carpeting room (cost of carpeting the area) = Rs. 150

Let the Breadth be X m.

Step-by-step explanation:

Area of the Floor = 30X

Hence rate of carpeting floor = 150/30X. (equation 1)

New Breadth = (X-5)m.

Therefore New Area = 30 (X-5).

Cost of carpeting = Rs. 120

HENCE RATE OF CARPETING FLOOR = 120/30 (X-5).. (equation 2)

ON DIVIDING BOTH THE EQUATION

YOU'LL GET

4X = 5X - 25.

X = 25...

SO FINALLY THE BREADTH OF THE ROOM WAS 25 metre..