Question

help wIll medal



If n is a term of the sequence 2, 5, 8, 11, ..., which expression would give the value of n?



2n + 1

2n - 1

3n - 1

n + 3

@silverr @mover96 @beastieman21

Answer 1

@ichliebedich

Answer 2

(3n-1) does not give the value of n. It gives the value of the nth term of the series.
For n=1, the 1st series term is 3*1-1 = 3-1 = 2
For n=2, the 2nd series term is 3*2-1 = 6-1 = 5
For n=3, the 3rd series term is 3*3-1 = 9 -1 = 8
...

(It appears that several of the questions on this quiz are badly worded. This is one of them.)

n+3 (answer D