the ages of two person, differ by 20 years. if 5 years ag, the elder one be 5 times as old as the younger one their present ages ( in years ) are respectively  Pick
A) 30 , 10  B) 2010  C) 3515  D) 5117  E) 20,17
<gadget id="calculator">20 + 10</gadget>
<output>30</output>

<result>A</result>
the ages of two person, differ by 20 years. if 5 years ag, the elder one be 5 times as old as the younger one their present ages ( in years ) are respectively
add(20, const_10)
let their ages be x and ( x + 20 ) years ( x - 5 ) * 5 = ( x + 20 - 5 ) after solving this we get x = 10 years the age of elder one = 10 + 20 = 30 years so the present ages are 30 and 10 years answer : a