If price of an article decreases from P1 to Rs 25, quantity demanded increases from 900 units to 1200 units. If point elasticity of demand is Â2 find P1?

If price of an article decreases from P1 to Rs 25, quantity demanded i

1.	If price of an article decreases from P1 to Rs 25, quantity demanded increases from 900 units to 1200 units. If point elasticity of demand is Â2 find P1?
A.	Rs. 20
B.	Rs. 30
C.	Rs. 25
D.	Rs. 35
Answer» C. Rs. 25