a survey of n people in the town of badaville found that 50% of them prefer brand A.another survey of 100 people in the town of Chotaville found that 60% prefer brand A.In total 55% of all the people surveyed prefer brand A.What is the total number of people surveyed?  Choose the correct answer: A) 180 B) 200 C) 220 D) 240 E) 260
badavilla=50% from 100   chotavilla=60% from 100   total=110 from 200   55% of 200 is also 110   so total number of survey is 200   ANSWER:200
<result>B</result>
a survey of n people in the town of badaville found that 50% of them prefer brand A.another survey of 100 people in the town of Chotaville found that 60% prefer brand A.In total 55% of all the people surveyed prefer brand A.What is the total number of people surveyed?