Question

a teacher wants to arrange 1251 students in rows so that the number of rows is equal to the number of students in each row. find the number of rows, if 26 students were left out after the arrangements

Answer 1

Total no. of students = 1251

Students left after arrangement = 26
Total students in the arrangement = 1251 - 26
= 1225

Now, no. of rows =
$\sqrt{1225 } \\ 35$
Hence there are 35 rows

Answer 2

Answer:

The number of rows  = 35

Step-by-step explanation:

Given,

Number of students to be arranged  = 1251

Number of students in each row =  Number of rows

Number of students left out after arranging in rows  = 26

To find,

The number of rows

Solution:

Let the number of rows = x

Since the number of students in each row  = number of rows

we have the number of students in each row = x

The total number of students arranged in rows = Number of students in each row × number rows x ×x  = x²

Since 26 students were left out after arranging 1251 students we have

1251 = x² + 26

x²  = 1251 - 26

=1225

x = $\sqrt{1225}$ = 35

∴The number of rows  = 35

#SPJ3