The ages of four sisters form a series of consecutive composite numbers. The oldest sister's age is a multiple of 25 and less than 100. Additional...
Question
The ages of four sisters form a series of consecutive composite numbers. The oldest sister's age is a multiple of 25 and less than 100. Additionally, the age of the second youngest sister, eight years ago, was twice a positive integer . What will be the age of the youngest sister after seven years?