Today John is 3 times older than Mark. If in 12 years, John will be one year younger than twice the age of Mark on that day, how old is Mark today?	Select the correct option
A) 13	B) 33	C) 36	D) 38	E) 11
Given after 12yrs john will be 1 year younger than twice mark's age   i.e 3M+12 = 2(M+12)-1   M=11   Answer is 11
<result>E</result>
Today John is 3 times older than Mark. If in 12 years, John will be one year younger than twice the age of Mark on that day, how old is Mark today?