Question

If p_1,p+3,3p_1are in ap then pis equal to

Answer 1

p-1,p+3,3p-1....................

we know that in a.p 2nd term - 1st term is difference

and difference is equal for all

p+3-(p-1)=3p-1-(p+3)

p+3-p+1=3p-1-p-3

4=2p-4

8=2p

4=p

p is equal to 4