Question

На голубятне было 42 сизых голуья,белых на 14 больше,чем сизых,а пёстрых в 2 раза меньше ,чем сизых и белых вместе.Седьмую часть всех голубей составляли почтовые.Сколько всего было на голубятне почтовых голубей?

Answer 1

1) 42+14=56 (г.) - белых2) 42+56=98 (г.) - белых и сизых3) 98:2=49 (г.) - пестрых4) 98+49=147 (г.) белых, сизых и пестрых5) 147*1/7=21 (г.) - почтовыхОтвет: 21 голубь

Answer 2

Calculating the Number of Postal Pigeons

To calculate the total number of postal pigeons on the pigeon farm, we can use the information provided in the question.

Given: - There were 42 blue pigeons. - There were 14 more white pigeons than blue pigeons. - The number of speckled pigeons was two times less than the sum of blue and white pigeons. - Postal pigeons constituted one-seventh of all pigeons.

Let's calculate the total number of postal pigeons.

First, let's find the number of white pigeons and speckled pigeons.

1. Number of White Pigeons: - Number of white pigeons = 42 (blue pigeons) + 14 = 56.

2. Number of Speckled Pigeons: - Number of speckled pigeons = (42 (blue pigeons) + 56 (white pigeons)) / 2 = 98 / 2 = 49.

3. Total Number of Pigeons: - Total number of pigeons = 42 (blue pigeons) + 56 (white pigeons) + 49 (speckled pigeons) = 147.

4. Number of Postal Pigeons: - Number of postal pigeons = Total number of pigeons / 7 = 147 / 7 = 21.

So, there were 21 postal pigeons on the pigeon farm.

Conclusion

The total number of postal pigeons on the pigeon farm was 21.