Question

В экскурсионном автобусе 31 место.Сколько мальчиков поехало,если их на 11 меньше,чем девочек?

Answer 1

10.
31-11=20
20:2=10(мальчиков)

Answer 2

Calculating the Number of Boys in the Bus

To calculate the number of boys in the bus, we can use the information provided in the question. Let's denote the number of boys as B and the number of girls as G. We are given that there are 31 seats in the bus and the number of boys is 11 less than the number of girls.

We can represent this information in the form of an equation: B = G - 11

We also know that the total number of students (boys and girls combined) is 31: B + G = 31

To solve for the number of boys, we can use the first equation to express G in terms of B and then substitute it into the second equation to solve for B.

Solving for the Number of Boys

Using the equation B = G - 11, we can express G in terms of B: G = B + 11

Substituting G = B + 11 into the equation B + G = 31: B + (B + 11) = 31 2B + 11 = 31 2B = 20 B = 10

So, the number of boys in the bus is 10.

Conclusion

Therefore, if there are 31 seats in the bus and the number of boys is 11 less than the number of girls, then there are 10 boys in the bus.