Which statement is true about the loudness of sound?
a. it is directly proportional to the distance of the listener from the source.
b. it is inversely proportional to the square of the distance of the listener from the source.
c. it is directly proportional to the square of the distance between the listener from the source.
d. it is inversely proportional to the distance between the listener from the source.

the five characteristics of adolescence are biological growth and development, and undefined status, increased decision making, increased pressure and the search of self.

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min