Question

В кинозале в каждом следующем ряду на 4 места меньше,чем в предыдущем. Сколько мест во втором ряду, если в 11 ряду кинозала 64 мест?

Answer 1

11•4=44
64+44=108 в первом ряду
108-4=104 во втором ряду

Answer 2

Calculating the Number of Seats in the Second Row of the Cinema Hall

To calculate the number of seats in the second row of the cinema hall, we can use the given information that in each subsequent row, there are 4 seats less than the previous row. We are also given that there are 64 seats in the 11th row of the cinema hall.

Let's calculate the number of seats in the second row using the given information.

Step 1: Calculate the total number of seats in the 11th row. The total number of seats in the 11th row is given as 64.

Step 2: Calculate the number of seats in the first row. To find the number of seats in the first row, we can use the fact that in each subsequent row, there are 4 seats less than the previous row. We can use this information to work backward from the 11th row to the first row.

Step 3: Calculate the number of seats in the second row. Using the information from the first row, we can calculate the number of seats in the second row by subtracting 4 from the number of seats in the first row.

Let's perform the calculations.

Calculation

1. Total number of seats in the 11th row: 64 2. Number of seats in the first row: - Let's assume the number of seats in the first row is x. - Then, the number of seats in the 11th row can be expressed as x - 4*(11-1) = 64. - Solving for x, we get x = 64 + 4*10 = 64 + 40 = 104. 3. Number of seats in the second row: - Since each subsequent row has 4 seats less than the previous row, the number of seats in the second row is 104 - 4 = 100.

Answer: The number of seats in the second row of the cinema hall is 100.