Question

A room in 6m long and 11m broad. It has one door measuring 2m by 1.1m and two windows each measusing 1.6m by 1.6m.The cost of painting the walls of the room at the rate of Rs. 90 per m sq is Rs.36291.60.Find the hight of the room

Answer 1

Answer: i can not proceed after this step as my algebric solving can be wrong. hope you can solve this last line

Step-by-step explanation:

let the hieght of the room be "y"

6m x y=6y (area of one of the walls)

11m x y= 11y (area of the other wall)

2m x 1.1m = 3.1m^2 (area of door)

1.6m x 2= 3.2 x 2= 6.4m^2 (area of 2 windows)

3.1m^2 + 6.4m^2= 9.5m^2 (area of windows and door)

(6y x 2) + (11y x 2) - 9.5m^2= area of the walls needed to be painted