The difference between the length and breadth of a rectangle is 6 metre If its perimeter is 64 metre...........

Quantitative Aptitude (RRB NTPC) Mensuration 2D

The difference between the length and breadth of a rectangle is 6 metre. If its perimeter is 64 metre, then its area is:

256 sq. metre

247 sq. metre

264 sq. metre

238 sq. metre

Let length and breadth of a rectangle are

l and b respectively

According to question, l-b =6

meter.......(1)

Given is ,perimeter = 64 meter

2l+b = 64

l+b = 32.........(.2)

From equation (1) & (2), we have

l=19 & b=13

Area of rectangle = lb

Area=19 x 13=247 sq.meter

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