1.

If the perimeter of a rectangle is 138 metres and the difference between the length and breadth is 7 metres, what is the area of the rectangle ?1). 1216 square metres2). 1147 square metres3). 1184 square metres4). 1178 square metres

Answer»

Solution

Let the length be x and breadth be y.
x - y = 7
The PERIMETER of rectangle is 138
2x + 2Y = 138
x + y = 69

2x = 76
x = 38
y = 31

Area of rectangle = 31*38 = 1178
Option D is correct.



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