P, Q, R and S are playing a game of carrom. P, R and S, Q are partners. 'S' is to the right of 'R'. If 'R' is facing West, then 'Q' is facing which direction?
If price of an article decreases from Rs 100 to Rs 80, when quantity demanded increases from Q1 units to 4600 units, and if point elasticity of demand is 0.75 find Q1?