The length of a rectangular floor is one and a half times its breadth. What is the perimeter of the floor (in meters) if its area is 216 sq meters
সমাধান
সঠিক উত্তর: Option C
A/Q,
x*x*1.5 = 216
or, x2 = 216 / 1.5
or, x2 = 144
or, x = 12
breadth = 12
so, length is = 1.5 * 12 = 18
Thus, perimeter = 2 * (12 + 18)
= 2 * 30
= 60
