In statement I, there is no relation given beteween p q & r, so not possible to answer the question.
In statement II, it is given that q, p and r are in geometric progression. Since q, p and r can take any values in G.P. so it is again not sufficient to answer the question.
If we combine both the statements, we can say that q = 3, p = 2 and r = 4/3. So the value of the given expression can be found.