Problema Solution
Martha, who is 12 years old is three times as old as jane.How old will Martha be when she is twice the age of jane?
Answer provided by our tutors
let current age of jane is x.
then we have 3x =12 ==> x = 4
let age if martha be y when she is twice the age of jane which is z.
then we have y = 2z
==> 12+y1 = 2(4+y1)
==? y1 + 4 = 2y1
==> y1 = 4
Hence, Martha will be 16 year old when she is twice the age of jane.