CAT Exam Model Paper 7 with solutions for free online practice

Since A and B are moving in the same direction the faster one takes a lead of one circle over the slower one when they meet for the first time after the start.
If A is faster than B:
(1) They meet for the first time when A finishes $\frac{4}{3}$ rounds and B finishes $\frac{1}{3}$ rounds.
In this case K = $\frac{1}{4}$ and the ratio 1 : K = 4 : 1
(2) They meet for the first time when A finishes $\frac{7}{3}$ rounds and B finishes $\frac{4}{3}$ rounds.
In this case K =$\frac{4}{7}$ and the ratio 1 : K = 7 : 4
If B is faster than A:
They meet for the first time when A finishes $\frac{1}{3}$ rounds and B finishes $\frac{4}{3}$ rounds.
In this case K = 4 and the ratio 1 : K = 1: 4