Q. 95.0( 1 Vote )

# The length and breadth of a room are in a ratio 3 : 2. The cost of carpeting the room at Rs 25 per m2 is Rs 1350 and the cost of papering the four walls at Rs 15 per m2 is Rs 2580. If one door and two windows occupy 8m2, find the dimensions of the room.

Area of the floor

Given that length and breadth are in ratio 3:2, so l = 3x and b = 2x

l= 9 m and b =6 m

Lateral surface area of a cuboid = 2(Length +Breadth) ×Height

Lateral surface area

Adding door and window, Lateral surface area = 180 m2

h = 6 m

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Surface Area of Right Circular Cylinder52 mins
Surface Area of Right Circular Cylinder49 mins
Surface Area of Cube and Cuboid49 mins
Surface Area and Volume of Spheres40 mins
Surface Area and Volume of Cone24 mins
10 Important Questions of Surface Area and Volume51 mins
Surface Area and Volume of Right Circular Cylinders42 mins
Quiz | Mensuration42 mins
Quiz | Surface Area & Volumes49 mins
Surface Area and Volume of Right Circular Cone37 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses