Question

Three cows A, B , C and D are tied with a pole at corners of a grass field. If cow A is tied with a 2 m long rope, cow B is tied with a 3 m long rope , cow C is tied with a 5 m long rope and cow D is tied with a 2.50 m long rope, then which cow has more grass to graze?

• A. Cow A
• B. Cow B
• C. Cow C
• D. Cow D

Answer 1

The correct option is C Cow C

The cows can graze inside the circle having the radius equal to the rope length. More the length of the rope, more grass is available for cow.

Here, the radii of the ropes of cow A, B, C and D are 2 m, 3 m, 5 m and 2.5 m respectively. Larger the radius, larger will be the size of the circle.
We know that 2 < 2.5 < 3 < 5.
Therefore, circle with rope length 5 m will have large area for grazing. So cow C has more grass to graze.