3.The length of a plot is four times its breadih. A playgrourdl measur

1.	3.The length of a plot is four times its breadih. A playgrourdl measuring1200) square metres occupies a third of the total area of the plot. Whatis the length of the plol, in metres?a) 20(c) 60(Bank P.O. Exam, 1940)(b) 30(d) none of these
Answer» Area of the plot = (3 x 1200) m^2= 3600 m^2 Let breadth = y metersThen Length = 4y meters,Now area = 4y x y = 3600 m^2⇒ y^2= 900 m^2⇒ y = 30 m ∴ Length of plot = 4y m= (4 x 30) m=120 m..hence option d

3.The length of a plot is four times its breadih. A playgrourdl measuring1200) square metres occupies a third of the total area of the plot. Whatis the length of the plol, in metres?a) 20(c) 60(Bank P.O. Exam, 1940)(b) 30(d) none of these

Answer»

Area of the plot = (3 x 1200) m^2= 3600 m^2

Let breadth = y metersThen Length = 4y meters,Now area = 4y x y = 3600 m^2⇒ y^2= 900 m^2⇒ y = 30 m

∴ Length of plot = 4y m= (4 x 30) m=120 m..hence option d