Question

Одна муха за 20 суток откладывает 120 яиц. Если предположить,что из половины яиц появятся самки, то сколько мух появится за два летних месяца? Помогите пожалуйста!

Answer 1

1200 по идеи, т.к если половина от 120 это 60 ,а 60•20 =1200

Answer 2

Calculation of the Number of Flies

To calculate the number of flies that will appear over a two-month period, we need to consider the following information:

- One fly lays 120 eggs in 20 days. - Assuming half of the eggs will hatch into female flies.

Let's break down the calculation step by step:

1. Calculate the number of eggs laid by one fly per day: - 120 eggs / 20 days = 6 eggs per day.

2. Calculate the number of female flies that will hatch from the eggs laid by one fly per day: - 6 eggs per day / 2 = 3 female flies per day.

3. Calculate the number of female flies that will hatch over a two-month period (60 days): - 3 female flies per day * 60 days = 180 female flies.

4. Calculate the total number of flies (including males and females) that will hatch over a two-month period: - Since we assumed that half of the eggs will hatch into female flies, we can assume that the other half will hatch into male flies. - Therefore, the total number of flies will be double the number of female flies: - 180 female flies * 2 = 360 flies.

So, over a two-month period, approximately 360 flies will appear if one fly lays 120 eggs in 20 days and half of the eggs hatch into female flies.

Please note that this calculation assumes ideal conditions and does not take into account factors such as mortality rates, environmental conditions, or other variables that may affect the actual number of flies.