If price of an article decreases from Rs. 800 to Rs. 700, quantity demanded increases from Q1 units to 70 units. If point elasticity of demand is - 1.333 find Q1?

If price of an article decreases from Rs. 800 to Rs. 700, quantity dem

1.	If price of an article decreases from Rs. 800 to Rs. 700, quantity demanded increases from Q1 units to 70 units. If point elasticity of demand is - 1.333 find Q1?
A.	80 units
B.	90 units
C.	60 units
D.	50 units
Answer» D. 50 units