Question

& find the value of p for which the
numbers ap 19 3p+, 11 are in
A.P.​

Answer 1

since, we know that

2nd term - first term = 3rd term - 2nd term

2nd term - first term = 3rd term - 2nd termi.e,

3p-19=11-3p

3p+3p=11+19

6p=30

p=5