Question

A shopkeeper earns a profit of rs.5 by selling one note book and incurs a loss of rs. 1 by selling an old pen in a particular month, the shopkeeper earns a profit of rs. 185.if he sold 75 old pens, find the number of note book sold.​

Answer 1

Answer:

Step-by-step explanation:

Let notebooks sold be 'x'

Therefore 5x-75×1=185

5x=260

x=52

Answer 2

Since he sold 75 pens,The loss occured is 75 rupees

That equals the profit of selling 75/5 notebooke =>15 note books

To have a profit of 185,the number of notebooks sold is 185/5=>37

So,the total number of books sold is 37+15=52