SOLUTION: In a class every student sent new year wishes to the other students in the class. every student had to bear RS.3/= as the stamp fee for each new year wish and the total stamp fe

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Question 1065481: In a class every student sent new year wishes to the other students in the class.
every student had to bear RS.3/= as the stamp fee for each new year wish and the total stamp fee was Rs.2610/=. How many students are there in the class?
Answer by ikleyn(52799) About Me  (Show Source):
You can put this solution on YOUR website!
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Let "n" be the number of students.

Then the number of "wishes"/letters is n*(n-1).

The equation is 

3n*(n-1) = 2610,  or

n*(n-1) = 870.

The solution is n = 30.

Answer. 30 students in the class.