Jeanine is as twice old as her brother.If the sum of their ages is 24,how old is Jeanine?

Brother =  1 time brother's age Jeanine =  2 times brother's age Sum      =   3 times brother's age But sum = 24 So                                          3 times brother's age = 24 Divide each side by  3 :          Brother's age = 8 Jeanine = 2 times brother's age  =                16 .

1 is 9 and 1 is 18 so that is the answer just divide than mutiply