Question

The cost of papering 4 walls of a room at 70 paise per square meters Rs 157.5p. The height of the room is 5 meters. Find the length and breadth of the room if they are in ratio 4:1

Answer 1

Answer:

Here is the answer to your question.

Cost of papering 4 walls of the room at Rs$\frac{70}{100} /m^{2}$ is Rs 157.50

Let the length of the room be 4$x^{}$ m and the breadth of the room be $x^{}$ m

Area of four walls of the room = 2h(l+b)=2*5*(4x+x)=50x$m^{2}$

Cost of papering 4 walls = Rs $\frac{70}{100} *50x^{} =Rs. 35x^{}$

Therfore 35x= 157.50

x= 4.5

Length of the room = 4*4.5m = 18m

Breadth of the room = 4.5m

Step-by-step explanation:

Answer 2

Step-by-step explanation:

Hope it is of some help.....