Question

the length of a rectangular field is 300m and breadth is 2/3of it's length. if a road of width 10m is built along the inner wall of the field. what is the area of the road. (HINT:area of road =outer area-inner area

Answer 1

two minutes i an sending answer

Answer 2

area of field=length * breadth
                   as breadth is 2/3 of length i.e300 
so breadth =2/3*300=200m
                   so area=300*200
                               =60000m2
      now when 10 m road is built so length=300-20=280m
                                                     and breadth=200-20=180m
      so area=length *breadth=180*280=50400m2
so area of road=area of rectangle outer-area of rectangle inner 
                        =60000-50400
                        =9600m2 
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