Question

What will be the 18th term of AP 4 , 6 , 8 .......... .​

Answer 1

Step-by-step explanation:

hope this answer will be helpful

Answer 2

18th term of the AP = 38

Given :

The arithmetic progression 4 , 6 , 8 , . . . .

To find :

18th term of the AP

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 progression

Here the given arithmetic progression is

4 , 6 , 8 , . . . .

Step 2 of 3 :

Write down first term and common difference

The arithmetic progression is

4 , 6 , 8 , . . . .

First term = a = 4

Common Difference = d = 6 - 4 = 2

Step 3 of 3 :

Find 18th term of the AP

18th term of the AP

$\sf = a_{18}$

= a + ( 18 - 1 )d

= a + 17d

= 4 + ( 17 × 2 )

= 4 + 34

= 38

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