Q. 104.2( 5 Votes )

The dimensions of a room are 12.5 m by 9 m by 7 m. There are 2 doors and 4 windows in the room; each door measures 2.5 m by 1.2 m and each window 1.5 m by 1 m. Find the cost of painting the walls at Rs. 3.50 per square metre.

Answer :


Dimensions of room = 12.5m ×9m × 7m

Dimensions of each door = 2.5m ×1.2m

Dimensions of each window = 1.5m ×1m

Area of four walls including doors and windows =


Area of 2 doors and 4 windows =

Area of only walls = 301 – 12 = 289 m2


Cost of painting walls at rate Rs.3.50 per square metre = Rs.(3.50 ×289) = Rs.1011.50

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Quiz | Practice More Questions on Cube and Cube Roots27 mins
Quiz | Cubes and Cube Roots41 mins
Champ Quiz | Cube and Cube Roots46 mins
Champ Quiz | Cubes and Cube Roots33 mins
Quiz | Cubes and Cube Roots41 mins
Quiz | Solve Imp. Qs. of Cube and Cube Roots39 mins
Lets Make a Timetable and Crack Olympiad40 mins
The History and Chemistry Behind a Matchstick!37 mins
Champ Quiz | Square Roots and Cube roots40 mins
Concentration makes you a Champ30 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