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) 100  B) 200  C) 300  D) 400  E) 500
.5*n+.6*100=.55*(n+100)   n=100   total people surveyed=n+100= 
<gadget id="calculator">+100</gadget>
<output>100</output>
100+100= 
<gadget id="calculator">100+100</gadget>
<output>200</output>
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?