• Login via
  • or
  • New here ?

The dimensions of a room are 25 feet * 15 feet * 12 feet. What is the cost of white washing the four walls of the room at Rs. 5 per square feet if there is one door of dimensions 6 feet * 3 feet and three windows of dimensions 4 feet * 3 feet each?

A.Rs. 4800
B.Rs. 3600
C.Rs. 3560
D. Rs. 4530
Answer and Feedback
Answer:D
Feedback:Area of the four walls = 2h(l + b)
Since there are doors and windows, area of the walls = 2 * 12 (15 + 25) - (6 * 3) - 3(4 * 3) = 906 sq.ft.
Total cost = 906 * 5 = Rs. 4530

Questions in to this exercise. Do you want test?

Practice Mensuration Online Test 4 | Englishfreetest.com

Share this post

some other questions in the test.

Some other questions you may be interested in.

Loading...