In a survey, three out of seven people named blue as their favorite color. One out of six named red. If 1,092 people were included in the survey, how many named neither blue or red as their favorite color a:650 b:468 C:442 D:86

Answer 1

Assuming they only picked one colour, so there is no overlap
1/6 picked red and 3/7 picked blue
so 1/6+3/7 or 25/42 picked red or blue
---> 17/42 did not pick either red or blue

so ....