in a group of people, 110 people like nuclear family but not joint family and 40 like joint family but not nuclear family. if the number of people who like nuclear family is twice the number of people who like joint family, find the number of people who like only one type of family by using a venn diagram

Three friends went on a road trip from phoenix, az, to san diego, ca. mark drove 50 percent of the distance. jason drove 1/8 of the distance. andy drove the remainder of the distance. 1. andy thinks he drove 1/4 of the distance from phoenix, az, to san diego, ca. is andy correct? 2. the distance from phoenix, az, to san diego, ca, is 360 miles. how many miles did each person drive? 3. solve the problem. what is the answer in total?