Question

Lenght of a rectangular tank is twice its breadth if tge deptg of a tank is 3m and area of its four walls is 108 find its length

Answer 1

Answer:

Step-by-step explanation

Let breadth be x

The length is 2x

Area of 4 walls = 2(l+b)h = 2(2x+x)*3m

= 2*3x*3m=18xm

Which means 108m^2 = 18xm

Then x = 108m^2/18m = 6m

Then length = 2x = 2*6m = 12m