Question

Four horses are tied on the four corners of
a square of field of 14m length so that each
horse can just touch the other two horses.
They were able to graze in the area
accessible to them for 11 days. For how
many days is the ungrazed area sufficient
for them?​

Answer 1

Answer:

this is answer

Answer 2

Explanation:

As each horse is able to touch other, the length of rope =7m

Each horse is able to graze the area equals to sector of radius 7m and angle 90 degree.

4 horses will able to graze the area equal to circle of 7m radius (as four sector of 90 degree each combines to form circle of radius 7m)

Hence, area of circle =7×7×

7

22

=154m

2

Area of square =14×14=196m

2

Remaining area to graze =196−154=42m

2

154 sq. m can be grazed by horses in 11 days.

Thus, 42 m

2

can be grazed by horses in 3 days