Question

щука выводит щурят 200.000 штук . а если 4/5 чать погибает

Answer 1

200.000*4/5=160.000  шурят осаются в живых

Answer 2

About Pike Breeding

When pike breed, they can produce a large number of offspring. It's reported that a single pike can produce up to 200,000 eggs. However, if a significant portion of the offspring does not survive, it can impact the overall population.

Impact of Mortality Rate

If 4/5 of the pike offspring were to perish, it would significantly affect the population size. With 200,000 eggs, if 4/5 or 80% were to die, it would leave only 20% of the initial number, resulting in 40,000 surviving pike.

The mortality rate of pike offspring can have a substantial impact on the population dynamics and the overall ecological balance in their habitat.

Note: The search results did not provide specific information about pike breeding and mortality rates, so the response is based on general knowledge about pike breeding and population dynamics.