Of the people who responded to a market survey, 240 preferred Brand X and the rest preferred Brand Y. If the respondents indicated a preference for Brand X over Brand Y by ratio of 6 to 1, how many people responded to the survey?	Choose the correct answer
A) 80  B) 160  C) 280  D) 360  E) 480

Rationale: "ratio = 6 : 1 = > 6 x respondents preferred brand x and x preferred brand y since , no . of respondents who preferred brand x = 240 = > 6 x = 240 = > x = 40 hence total no . of respondents = 240 + 40 = 280 hence c is the answer ."
Answer: C