3249 persons are sitting in a cinema hall in such a manner that there are as many persons in a row as there are rows in the hall find the number of rows
people=number rows*numberseatsperrow
people= r^2
solve for r.
To find the number of rows in the cinema hall, we can use the concept of square numbers.
A square number is the result of multiplying an integer by itself. For example, 3 x 3 = 9, so 9 is a square number.
In this scenario, the total number of people sitting in the hall is 3249, which represents a square number.
To determine the number of rows, we need to find a number that, when multiplied by itself, gives us a result of 3249.
We can start by taking the square root of 3249. The square root of a number is the value that, when multiplied by itself, equals the original number.
Using a calculator or any mathematical tool, we find that the square root of 3249 is approximately 57.
This means that there are 57 seats in each row because there are as many people in a row as there are rows in the hall.
Therefore, the number of rows in the cinema hall is 57.
Let x=number of rows, and
since number of rows = number of persons per row, we have
x*x=3249, or
x=sqrt(3249)
take out your calculator and find x.