Question

In an A.P ,if q^th term is P and p^th term is Q then common difference is

Answer 1

Answer:

-1

Step-by-step explanation:

a + (q-1)d = p

a + (p-1)d = q

d (p-1 - q +1) = q -p

d (p-q) = -(p-q)

d = -1