A reduction of 50% in the price of apples would enable a man to obtain 80 more for Rs.55, what is reduced price per dozen?  Pick:
A) 1
B) 3
C) 4
D) 7
E) 10

Rationale: c 55 * ( 50 / 100 ) = 28 - - - 64 ? - - - 12 = > rs . 4
Answer: C