Question

Ребята повели лошадей на водопой.Сколько было ребят и сколько лошадей ,если при подсчете оказалось 25 голов и 80 ног

Answer 1

Условие:
Ребята повели лошадей на водопой.Сколько было ребят и сколько лошадей ,если при подсчете оказалось 25 голов и 80 ног
решение:
80:4 (4 потому что у лошодей 4 ноги)=20(л)
25-20=5(ч)
Ответ:5 людей и 20 лошадей

Answer 2

Calculating the Number of Children and Horses

To solve this problem, we can use a system of equations to represent the number of children and horses. Let's denote the number of children as C and the number of horses as H. We are given two pieces of information: 1. The total number of heads (children and horses) is 25. 2. The total number of legs (children's and horses') is 80.

We can create the following system of equations based on the given information: 1. C + H = 25 (total number of heads) 2. 2C + 4H = 80 (total number of legs, as each child has 2 legs and each horse has 4 legs)

Solving the System of Equations

We can solve this system of equations to find the values of C and H.

First, let's solve the first equation for C: C = 25 - H

Now, substitute this value of C into the second equation: 2(25 - H) + 4H = 80

Solving for H: 50 - 2H + 4H = 80 50 + 2H = 80 2H = 80 - 50 2H = 30 H = 30 / 2 H = 15

Now that we have the value of H, we can find the value of C: C = 25 - 15 C = 10

Conclusion

Therefore, there were 10 children and 15 horses in total when the count of heads was 25 and the count of legs was 80.