In a recent survey about the types of transportation used for vacation, 36% of the 200 people surveyed chose airplanes, 53% chose automobiles, 2% chose trains, and the remainder chose boats. how many people chose boats?

Respuesta :

fist lets find the % of people using boats 
100%- (36+53+2)= 9%
then find the number of people of 9%
200= 100%
B=9%
100B=200x9
B= 18