- A rancher wants to fence in a corral for his prize winning
stallion. He wishes to have an area of 400 square yards. He
also wants the perimeter to be as small as possible in order to
minimize the cost of the fencing. If the side lengths are natural
numbers, find the dimensions of the corral.

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.