q-p = p-11
21.5-q = q-p
p = 29/2, q=18
d = 3 1/2, so the sequence is
11, 14 1/2, 18, 21 1/2
The number 11,p,q,21¹/2.....form an A.P. Find p and q
4 answers
Answer not clear
Answer
Need answer