Question

A cow is tethered in the middle of a field with a $14$ feet long rope. If the cow grazes $100sq.ft$ per day, then approximately what time will be taken by the cow to graze the whole field?

• A. $2$ days
• B. $6$ days
• C. $24$ days
• D. None of these

Answer 1

The correct option is B $6$ days

Area of field $=\pi 2^2$

$=\frac{22}{7}\times 14\times 14$

$=616l{t}^2$

No,of days required $=\frac{616}{100}=6.16\simeq 6days$