30. The area of a rectangular field is 3584 m2 and its length is 64 m.

1.	30. The area of a rectangular field is 3584 m2 and its length is 64 m. A boy runs arod 1 m hrnad, It is to be paved with stones, each meafencing it atper metre.f dimensionsnd the cost offield at the rate of 6 km/h. How long ill he take to go 5 times around it?
Answer» Area of rectangular field=lengthbreadth64breadth=3584 breadth=3584/64=56m Permeter of rectangular field=2(l+b)=2(64+56)=240 m Distance covered by boy when he completes 5 rounds of the field=5×240 m=1200 m=1.2km Time taken= Distance/speed=1.2/6 hours=0.2 hours

30. The area of a rectangular field is 3584 m2 and its length is 64 m. A boy runs arod 1 m hrnad, It is to be paved with stones, each meafencing it atper metre.f dimensionsnd the cost offield at the rate of 6 km/h. How long ill he take to go 5 times around it?

Answer»

Area of rectangular field=length*breadth64*breadth=3584

breadth=3584/64=56m

Permeter of rectangular field=2(l+b)=2(64+56)=240 m

Distance covered by boy when he completes 5 rounds of the field=5×240 m=1200 m=1.2km

Time taken= Distance/speed=1.2/6 hours=0.2 hours