Question

Is
331
in the sequence below?
1
,
7
,
13
,
19
,
25
,
.
.
.

Answer 1

Answer:

No , Next is 31 . use little brain

Answer 2

SOLUTION

TO CHECK

Is 331 in the sequence below

1 , 7 , 13 , 19 , 25 ,...

EVALUATION

Here the given sequence is 1 , 7 , 13 , 19 , 25 ,...

This is a arithmetic sequence

First term = a = 1

Common difference = d = 7 - 1 = 6

Let nth term = 331

⇒ a + ( n - 1 ) d = 331

⇒ 1 + 6( n - 1 ) = 331

⇒ 6( n - 1 ) = 330

⇒ ( n - 1 ) = 55

⇒ n = 56

So 331 is a term of the sequence and 56th term is 331

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