Question

Розв'яжіть, будь ласка, задачу! Терміново треба! Петр Петрович ловив рибу 10 годин. За першу годину він наловив 18 рибин, що становить 30% усього улову. Який середній улов Петра Петровича за годину?

Answer 1

1) 18 : 30% = 18 : 0,3 = 60 рыб всего поймал за 10 часов
2) 60 : 10 = 6 рыб в час средний улов за час

Answer 2

Problem Analysis

To solve this problem, we need to find the average catch of Peter Petrovich per hour. We are given that Peter caught 18 fish in the first hour, which represents 30% of his total catch. We need to determine the total catch and then calculate the average catch per hour.

Solution

Let's assume that the total catch of Peter Petrovich is represented by the variable "T". We are given that the catch in the first hour is 18 fish, which is 30% of the total catch. We can set up the following equation:

18 = 0.3T

To find the total catch, we can solve this equation for T:

T = 18 / 0.3

Now, we can calculate the total catch:

T = 60

Therefore, the total catch of Peter Petrovich is 60 fish.

To find the average catch per hour, we divide the total catch by the number of hours:

Average catch per hour = Total catch / Number of hours

Average catch per hour = 60 / 10

Average catch per hour = 6

Therefore, the average catch of Peter Petrovich per hour is 6 fish.

Answer

The average catch of Peter Petrovich per hour is 6 fish.