The area of four walls of a rectangular hall having length 18 m and height 8 m is 448 m2. What is the breadth of the hall (in m)?
Answer & explanation
Correct answer: option 1
Area of four walls = 2(bh + lh) = 2*(b*8 + 18*8) = 448
b*8 = 224 - 18*8
b = 28-18 = 10
The correct answer is Option (1) → 10