Question

A shopkeeper earns a profit of Rs 5 by selling one notebook and incurs a loss of Rs 1by selling an old pen .In a particular month ,the shopkeeper earns a profit of Rs185 . If he sold 75 old pen ,find the number of the notebooks sold

Answer 1

52 notebooks were being sold

5*52=260, 75 old pen= -75

So balance= 260-75= +185