Question

insert an arithmetic mean between (p-q) and (p+q)

Answer 1

the answer is p
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Answer 2

Airthmetic mean of ( p - q) and (p +q)

formula for airthmetic mean of an A.P
= a + b /2

here a = p-q ,and b = p+q

=( p -q +p+q) / 2

= 2p / 2 = p

ans = p

hope it helps.