Question

plzz solve this question
my heartening request to you

Answer 1

Area of four walls
=2h(l+b)=120
2×4×3x=160
x=20/3
hence length=40/3
breadth=20/3
so area of floor
=l×b
$\frac{20}{3} \times \frac{40}{3} \\ \frac{800}{9}$