# Question #f7f2c

Oct 19, 2017

b. $12$ seagulls per hour

#### Explanation:

$\text{1 pm} = 16$

$\text{3 pm} = 40$

Difference in time $= \text{2 hours}$

Difference in number of seagulls $= 24$

So $24$ seagulls in $2$ hours. Divide both by $2$ to get $12$ seagulls per hour.