Question

A shopkeeper earns a profit of Rs 3 per pen sold and a loss of Rs 1per pencil sold?

b)What is the number of pens he must sell so as to have neither profit nor loss If number of pencils sold are 102?​

Answer 1

Answer:

let take no. of pens=x

and pencil=102

so, per pen=3, for x pens=3*x=3x

102/3=34