Question

*A total of 324 seats are to be arranged in a hall for the graduation ceremony. The number of seats in a row is the same as the number of rows in the hall. How many seats are there in a row?*

1️⃣ 324
2️⃣ 162
3️⃣ 18
4️⃣ 9

please answer me fast it's urgent if your answer is correct then I will mark you brainliest.​

Answer 1

The number of seats in a row is 18. (option 3)

Given,

In a hall, a total of 324 seats are to be arranged.

The number of seats in a row is the same as the number of rows in the hall.

To find,

How many seats are in a row?

Solution,

It can be seen that here, a total of 324 seats are to be arranged in a hall.

Also, it is given that the number of seats in a row is the same as the total number of rows in the hall.

Now, let the number of rows in the hall be 'x'.

As the number of seats is also equal, it means,

the number of seats in a row will also be 'x'.

The product of the total number of rows with the number of seats in a row will give the total number of seats in the hall.

So,

the total number of seats = $x \times x$ = x².

But, total seats = 324.

Thus,

x² = 324

Simplifying,

$x=\sqrt{324}$

⇒ x = 18.

Therefore, the number of seats in a row is 18. (option 3)

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