For the following questions answer them individually
Find the value of$$ sin(180^\circ - \theta) cos (90^\circ -\theta ) - cos (180^\circ - \theta) sin (90^\circ - \theta)$$.
A boy is standing at a platform and sees his watch showing 3:45 PM. The hour hand points east and the minute hand points west. Which direction the boy is facing now?
Around a circular track of 120 m, P and Q start running simultaneously from the same point in the same direction at 20 m/min and 12 m/min. At how many points will they meet?
