Question 161177
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Son's age= {{{x}}}
Mrs.Jonhson's age= {{{3x}}}, 3 times Son's age
Condition: 10 yrs ago, she was 5 times as old as her son.
{{{5(x-10)=3x-10}}}
{{{5x-50=3x-10}}}
{{{5x-3x=50-10}}}
{{{2x=40}}} ----> {{{cross(2)x/cross(2)=cross(40)20/cross(2)}}}
{{{x=20yrs}}}, age of Son
{{{3*20=60yrs}}}, age of Mrs.Johnson
check via the condition
Age of her son 10 yrs ago: 20-10=10yrs
Age of Mrs.Johnson 10 yrs ago: 60-10=50 yrs ---> 5 times the age of her son {{{5*10=50}}}
Thank you,
Jojo</pre>