Discussion

Question:

If p : q = 3 : 1, find $\frac{p - 2 q}{3 p - q^{2}}$ .

Explanation:

Given that p : q = 3 : 1

p/q = 3/1

p = 3q

$\frac{p - 2 q}{3 p - q^{2}} = \frac{3 q - 2 q}{3 (3 q) - q^{2}}$ (∵ p = 3q)

= $\frac{q}{9 q - q^{2}} = \frac{1}{9 - q}$

Since we don’t know the value of ‘q’, the answer cannot be determined.

Hence, option (d).

» Your doubt will be displayed only after approval.

Doubts