A shopkeeper earns a profit of re.1 by selling one pen and incurs a loss of 40 paise per pencil of 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?
A shopkeeper earns a profit of re.1 by selling one pen and incurs a loss of 40 paise per pencil of 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?