Question

The 4th term of Ap is 11. The sum of 5th term and 7th term is 34. Find common difference

Answer 1

Answer:

4th term = 11

Therefore, a + 3d = 11....(1)

Sum of 5th and 7th term = 34

Therefore, a + 4d + a + 6d = 34

2a + 10d = 34.....(2)

On solving (1) and (2),

We get,

2a + 6d  = 22

2a + 10d = 34

_____________

-4d = -12

d = 3

HOPE THAT THIS WAS HELPFUL!!!!

Step-by-step explanation: