Question 1097152
Let {{{ m }}} = mother's age when Adam was 1/3 her age
The difference in their ages never changes
The difference is:
{{{ 66 - 26 = 40 }}} yrs
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I can say:
{{{ m - (1/3)*m = 40 }}}
{{{ 3m - m = 120 }}}
{{{ 2m = 120 }}}
{{{ m = 60 }}}
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{{{ 66 - 60 = 6 }}} years before 1996
which was 1990
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check answer:
When mother was 60, Adam was:
{{{ (1/3)*m = (1/3)*60 }}}
{{{ (1/3)*m = 20 }}}
and
{{{ 60 - 20 = 40 }}} the difference in their ages
is correct