Today Justin reached 1/11 the age of his mother was when he was born. Today , Justins mother is ------ times as old as Justin.

Answer 1

It would help if you proofread your questions before you posted them. Incomplete data.

Answer 2

Mother's age today = M
Justin's age today = J
(M-J)/J=11
M/J - 1 = 11
M/J = 12

Answer: today Justin's mother is 12 times as old as Justin.
Examples of today's age:
Mother Justin
24 2
36 3
48 4
...