Question

В последнее воскресенье музей посетило 150 человек, при этом все вместе они заплатили за билеты 12000 рублей. Детский билет стоит 50 рублей, а взрослый - 100 рублей. Сколько детей было среди посетителей?

Answer 1

Х взрослых
150-х детей
100х руб заплатили за взрослые билеты
50*(150-х) заплатили за детские билеты
100х+50*(150-х)=12000
100х+7500-50х=12000
50х=4500
х=90 взрослых
150-90=60 детишек
90*100=9000 руб заплатили взрослые
60*50=3000 руб заплатили за детские билеты

Answer 2

Calculating the Number of Children Visitors to the Museum

To calculate the number of children among the visitors, we can use the given information about the total number of visitors and the total amount paid for the tickets.

The total number of visitors is 150, and the total amount paid for the tickets is 12000 rubles. Additionally, we know that the cost of a child's ticket is 50 rubles, and the cost of an adult's ticket is 100 rubles.

Let's denote the number of children as C and the number of adults as A. We can create the following equations based on the given information:

1. C + A = 150 (Total number of visitors) 2. 50C + 100A = 12000 (Total amount paid for the tickets)

We can solve these equations to find the values of C and A.

First, we can use the first equation to express A in terms of C: A = 150 - C

Then, we can substitute this expression for A into the second equation: 50C + 100(150 - C) = 12000

Solving this equation will give us the value of C, which represents the number of children among the visitors.

Let's calculate the number of children visitors using the given information.