Question

In a cinema hall 729 people are seated in such a way that the number of people in a row is equal to the number of rows. Then how many rows of people are there in the hall?

Answer 1

Answer:

Step-by-step explanation:

Let the no. of rows be x

no.of rows= no. of people=x

x×x =729

x²=729

x=√729

x= 27

ans is 27

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Answer 2

Given : In a cinema hall 729 people are seated in such a way that the number of people in a row is equal to the number of rows.

To find : Number of rows.

Solution :

We can simply solve this mathematical problem by using the following mathematical process. (our goal is to calculate the number of rows)

Let, the number of rows = x

Now,

Number of people in a row = Number of rows

So,

Number of people in a row = x

And,

The total number of people :

= Number of people in a row × Number of rows

= x × x

= x²

According to the data mentioned in the question,

x² = 729

x = √729

x = 27

So, the number of rows = x = 27

(This will be considered as the final result.)

Hence, there are 27 rows.