3. Find the co-ordinates of 'B'

The point \(P(\)42, 42\()\) divides the line segment joining the points \(AB\) internally in the ratio 4 : 1. If \(A\) is \((\)10, 10\()\), find the co-ordinates of \(B\).

 

The co-ordinates of \(B\) is \((\), \()\).