pls solve this problem
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Let the number of rows be x.
Now, there are 4 more students in each row
No. of students=x+4
So, according to the given question
➡x(x+4)=480
➡x²+4x=480
➡x²+4x-480=0
➡x2+24x-20x-480=0
➡x(x+24)-20(x+24)=0
➡(x+24)(x-20)=0
x= -24(neglected)
x=20
Therefore, no. of students=x+4=20+4=24
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