Question

11+17+23.....is 551 which term of the series

Answer 1

Answer:

marj it as brainliest answer

Answer 2

551 is 91th term of the series 11 + 17 + 23 + . . .

Given :

The series 11 + 17 + 23 + . . . .

To find :

Which term of the series is 551

Concept :

If in an arithmetic progression

First term = a

Common difference = d

Then nth term of the AP

= a + (n - 1)d

Solution :

Step 1 of 3 :

Write down the given series

Here the given series is

11 + 17 + 23 + . . . .

This is an arithmetic series

Step 2 of 3 :

Write down first term and common difference

First term = a = 11

Common Difference = d = 17 - 11 = 6

Step 3 of 3 :

Find which term of the series is 551

If possible let nth term of the series is 551

Then nth term of the series = 551

a + (n - 1)d = 551

⇒ 11 + (n - 1) × 6 = 551

⇒ 11 + 6n - 6 = 551

⇒ 6n + 5 = 551

⇒ 6n = 551 - 5

⇒ 6n = 546

⇒ n = 546/6

⇒ n = 91

Hence 551 is 91th term of the series 11 + 17 + 23 + . . . .

━━━━━━━━━━━━━━━━

Learn more from Brainly :-

$1.$ If for an A.P., S15= 147 and s14=123 find t 15

(A) 24 (B) 23 (C) 47 (D) 46

https://brainly.in/question/34324030

2. Insert there arithmetic means between -20 and 4

https://brainly.in/question/29887163

#SPJ3