Subject: mathqa
Question: a dealer offers a cash discount of 16 % and still makes a profit of 25 % when he further allows 60 articles to be sold at the cost price of 50 articles to a particular sticky bargainer . how much percent above the cost price were his articles listed ?
Option: 
A: 60 %
B: 70 %
C: 78 + ( 4 / 7 ) %
D: 75 %
Answer: C