Question

A shopkeeper earns a profit of rs.1 by selling one pen and incurs a loss of 40 pause per pencil while selling her old stock . In a particular month she incurs a loss of rs.5.In this period , she sold 45 pens.How many pencils did she sell in this period?

Answer 1

Seller got Loss in a particular month= Rs $5$

Profit gained by selling one pen = Rs. $1$

Profit gained by selling 45 pens = Rs 45

$45+x=-5\Rightarrow x=-50$

So, a loss of Rs 50 has occurred while selling pencils.

No. of Pencils sold $=\frac{50}{0.40}=125$

She sold $125$ pencils in this period.