Hello Ravneet
It is given in the question that
Sum of present ages of two friends is 20.
Please check https://www.teachoo.com/1568/509/Ex-4.4--4---Is-the-situation-possible--If-so--determine/category/Ex-4.4/
Written on Sept. 29, 2018, 1:30 p.m.
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Why the present age of two friends = 20
Davneet Singh
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