28 . twice of 28 is 56 and difference from 14 is 42 and same difference from 28 is 14
Husband + wife = 91 years Husband + X = ( Wife + X ) * 2 42 + X = ( 14 + 2) * 2 X = 14 years passed Therefore She is 14 + 14 = 28 years old
A husband and wife have a combined age of 91. If husband is now twice as old as his wife was when he was as old as she is now. How old are they now?