Question

A rectangular room had width half of its lengdth. when 6 is decreased from both length and width then its area is differed by 108 so find the width

Answer 1

Let Breadth = x
Then Length = 2x
Now find it's area.
.
Again subtract 6 from both l & b .then find its new area.
Now new area is less than original one by 108.
Solve the equation.
Your answer = 8
That is b = 8