Question

if an owl makes one pellet a day how many mice,voles,rats,or birds must it catch in one week ,month,or year

Answer 1

Answer:

$\large \boxed{\text{32 small animals/wk, 136/mo, and 1640/yr}}$

Explanation:

The pellets from a barn owl often contain the remains of 4 or 5 small animals. Let's assume an average of 4.5 animals per day.

1. Animals per week

$\text{Per week} =\dfrac{\text{1 pellet}}{\text{1 da}} \times \dfrac{\text{4.5 animals}}{\text{1 pellet }} \times \dfrac{\text{7 da}}{\text{1 wk}} = \textbf{32 animals/wk}$

2. Animals per year

$\text{Per year} = \dfrac{\text{32 animals}}{\text{1 year}} \times \dfrac{\text{52 wk}}{\text{1 yr}} =\textbf{1640 animals/yr}$

3. Animals per month

$\text{Per year} = \dfrac{\text{1640 animals}}{\text{1 year}} \times \dfrac{\text{1 yr wk}}{\text{12 mo}} = \textbf{136 animals/mo}\\\\\text{A barn owl eats \large \boxed{\textbf{36 small animals/wk, 136/mo, and 1640/yr}} }$