Question

The door is 4M and breadth is 3M is fitted in the wall. The length of the wall is 15.4M and breadth is13.6 M find the reamimaining area of the wall

Answer 1

First of all we will find area of door
which is equal to 4×3=12
Now area of wall is
$15.4 \times 13.6 = 209.44$

Now remaining area is difference of area of wall and area of door
$209.44 - 12 = 197.44$
which is required answer