Shabana bought 16 dozen ball pens and sold them at a loss equal to S.P of 8 ball pens. Find
i) Her loss percent
ii) S.P of 1 dozen ball pens, if she purchased these 16 dozen ball pens for Rs. 576.
Samir bought a box containing ball pens and gel pens. The number of ball pens was six then gel pens and there were a total of 24 pens. How many gel pens did Samir buy ?