<PRE><B>Question 214165</B>
Let {{{a}}} = your current age
40 years ago, your age was {{{a - 40}}}
In 4 years your age will be {{{a + 4}}}
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given:
{{{a - 40 = (1/3)*(a + 4)}}}
{{{3*(a - 40) = a + 4}}}
{{{3a - 120 = a + 4}}}
{{{2a = 124}}}
{{{a = 62}}}
Your age now is 62
check:
40 years ago you were 22
In 4 years you will be 66
one third of 66 is 22
OK
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