In the sequence 3 8 13 18 what term of the series is the number 2218

By clearly looking at the sequence there are in Arithmetic Progression

So for finding which term is 2218 in that sequence

we have x_{n} = a + (n-1) d

Here,

a=3

x_{n}=2218 & d=5 (by looking at the sequence given)

by substituting those values we get our desired result

2218=3 + (n-1) 5

2218-3 = (n-1) 5

2215 = (n-1) 5

2215/5=n-1

453=n-1

n=454

so 454 term is 2218