Question 1143852
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Let " x " be the Sipho's age.


Then the Tracey's age is 5x, according to the condition.


The sum of their ages is 18.  It means that


    x + 5x = 18,    or

    6x     = 18.


Hence,   x = 18/6 = 3 years.   It is the Sipho's age.


Then the Tracey age is 5 times it, i.e.  5*3 = 15 years.


<U>ANSWER</U>.  Sipho is 3 years old.   Tracey is 15 years old.
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Is it clear to you now ?