1. PQRS is a cyclic trapezium. PQ is a diameter of the circle, and PO || SR. If \(\angle\)QRS = 110°, then the value of \(\angle\)QSR is -

(a) 20° (b) 25° (c) 30° (d) 40°

2. If \(x \propto \sqrt{y}\) and \(z \propto \sqrt[3]{x}\), then what is the relationship between \(y\) and \(z\)?

(a) \(z^6 \propto y\) (b) \(y^6 \propto z\) (c) \(z^2 \propto y\) (d) \(y^2 \propto z\)