As many students in a class, each contributes equal to the number of class-mates. Total Tk. $420$ collected. Number of s

Question

As many students in a class, each contributes equal to the number of class-mates. Total Tk. $420$ collected. Number of students is—

Accepted Answer

$21$

Answer

$20$

Answer

$25$

Answer

$42$

As many students in a class, each contributes equal to the number of class-mates. Total Tk. 420420420 collected. Number of students is—