Question

A shopkeeper earns a profit of 2 rupees by selling one marker pen and incurs a loss of 1 rupee per eraser.
1) In month of January ,he incurs a loss of 5 rupees. In that month ,he sold 40 marker pens . How many eraser did he sell?

Answer 1

Answer:

5 because there is loss of 1ru in selling 1 eraser