From the problem, we can derive two equations.
The first will be [tex]1.25p = q[/tex], as we know that the price index of q from p is 125.
The second will be [tex]q-p=1.30[/tex], as we know that the price q is RM1.30 greater than p.
Solving the system of equations gives us p = 5.2, and q = 6.5.
