The sum of 5 consecutive numbers is 200. What is the smallest number?

38

Step-by-step explanation:

let x-2,x-1,x,x+1,x+2 be five consecutive numbers and x-2 is smallest number.

x-2+x-1+x+x+1+x+2=200

5x=200

x=200/5=40

x-2=40-2=38

smallest number is 38

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.