Computer Science, asked by pr260989, 3 months ago

2
29. The 4th term of an AP is 11. The sum of the 5th and 7th terms of this AP
is 34. Find its common difference.
[CBSE 2015]​

Answers

Answered by rv6397672
1

Explanation:

T

4

=11

T

5

+T

7

=34

a+3d=11,

a+4d+a+6d=34

2a+10d=34

a+5d=17

⇒(a+5d)−(a+3d)=17−11

⇒2d=6

⇒d=3.

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