Answer:
-25
Step-by-step explanation:
Given:
The stock market gain and loss.
Monday = +20
Tuesday = -30
Wednesday = -15
Here negative sign represents the loss and positive sign represents the gain.
Now let's calculate the gain or loss,
= +20 - 30 - 15
= +20 - 45
= -25
It is negative 25, therefore, it is a loss.
So, the loss over the three days -25.