Jaylen and six of her younger siblings have ages that are consecutive. When they moved from San Francisco to Chicago, their ages (all seven of them) added up to 91. How old was Jaylen when they moved?
16 + 15 + 14 + 13 + 12 + 11 + 10 are all of the consecutive ages of Jaylen, and her younger siblings when they moved to Chicago. Jaylen being the oldest, she must also be 16.