Question

A shopkeeper earns a profil of rupees 1 by selling one pen and earns a loss of 30 paise on sale of one pencil . In a particular month , he incrus a loss of rupees 5 . In that month ,he sold 40 pens . How many pencil did he sell in that period ?

Answer 1

profit of pen- 1 rupees

so profit in month is

40rupees

then if he get loss of 5 rupees per pencil in a month
then in Paise 500

500 / 30
7
so he sold 7 pensloop