Question

in the survey one out of three people are named blue as their favorite color two out of seven named red is 1,092 people were included in the survey how many name either blue or red as a favorite color?

416 people
432 people
540 people••
512 people

Answer 1

P = 1,092 - (1/3+2/7)*1,092 =
1,092 - (7/21+6/21)*1092 =
1092 - (13/21)*1092 = 1092 - 676 = 416.