Question

the ratio between length and breadth of a room is 3 :2. The cost of colouring all four walls at 50 paise per square metre is rupees 125 if length of room is 15 metre find the height of the room?​

Answer 1

Answer:

The height of the room 135 m2.

Step-by-step explanation:

Let the length and breadth be 2x and 3x respectively. Then,floor area =6xsq. m.

Cost of flooring at the rate of Respiration. 4.00 per m2

= Rs. 216

6x2 *4=216

or x2=9

or x=3

Length =3x=9m

Breadth =2x=6m

and Height =1/2 *length =4.5m

Area of four walls =2(length * height + breadth * height)

=2( 9*4.5+6*4.5)

=135m2.

Hope it will help you!