The length of a rectangular floor is one and a half times its breadth. What is the perimeter of the floor if its area is 216 sq meters.
সমাধান
সঠিক উত্তর: Option C
Let, breadth = x
So, X×(3/2)x = 216
=> 3x2/2= 216
=> x2 = (216×2)/3
=> x2 = 144
=> x = 12
So, Breadth = 12, Length = (3/2)×12 = 18
So, perimeter of the floor = 2(12+18) = 60 (Ans.)
