The breadth of a rectangular hall is three-fourth of its length. If the area of the floor is 768 sq. m., then the difference between the length and breadth of the hall is:
The breadth of a rectangular hall is three-fourth of its length. If the area of the floor is 768 sq. m., then the difference between the length and breadth of the hall is:
[A]32 meters
[B]12 meters
[C]8 meters
[D]24 meters
8 meters
Let the length of rectangular hall = x metre
∴ Breadth
Area of rectangular = Length 
According to the question,
∴ length = 32 m and Breadth = 24 m
∴ Required difference = 32 – 24 = 8 m
Hence option [C] is the right answer.
