<PRE><B>Question 1053249</B>
Peter: P
Father: F
You can substitute with x and y if required.
:
P = 1/5F
P+F = 48 substitute for P
1/5F+F = 48
Multiply both sides times 5:
F+5F = 240
6F = 240
F = 240/6 = 40 The father is 40
And Peter: 40*1/5 = 40/5 = 8 Peter is 8</PRE>