SOLUTION: an A.P whose first term is 3 and end term is 48 it has the sum of it first end term=225 find the Nth term

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Question 1102306: an A.P whose first term is 3 and end term is 48 it has the sum of it first end term=225 find the Nth term
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Poor description not seem to work.
"sum of first n terms, 225"?

%28n%2F2%29%283%2B48%29=225
%28n%2F2%29%2851%29=225
n=450%2F51=8%2642%2F51------Not acceptable. n must be a whole number.

"sum of first end term=225"----not clear; n-th term itself already given as 48.