Question 923867: PLEASE PLEASE HELP ME IF SOME ONE CAN
IF THE SUM OF THE FIRST N POSITIVE INTEGERS IS EQUAL TO N(N+1)/2,THEN THE SUM OF THE FIRST 25 POSITIVE INTEGERS IS.....OPTIONS ARE
(A)51
(B)52
(C)313
(D)20
(E)25
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! If:
SUM OF THE FIRST N POSITIVE INTEGERS = N(N+1)/2
Then:
SUM OF THE FIRST 25 POSITIVE INTEGERS = ?
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N = 25
N(N + 1)/2 = ?
25(25 + 1)/2 = ?
25(26)/2 = ?
25*13 = ?
---
answer:
25*13 = 325
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your problem statement is wrong!
none of the multiple choice answers you gave are correct
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