Farmer brown reported that 40 of his chickens died during the rainy season.if this represented 5% of the total number of chickens how many chickens did he have originally?

Let's represent the total number of chickens originally as 'x'.

We know that 40 chickens died during the rainy season, which is 5% of the total number of chickens.

Therefore, we can set up the equation:

0.05x = 40

To solve for x, we divide both sides by 0.05:

x = 40 / 0.05
x = 800

So, Farmer Brown originally had 800 chickens.