Question

find p in the sequence 2p,p+10,3p+10​

Answer 1

$2b = a + c \\ \\ 2(p + 10) = 3p + 10 + 2p \\ \\ 2p + 20 = 3p + 10 + 2p \\ \\ 20 =3 p + 10 \\ \\ 10 = 3 p \\ \\ p = \frac{10}{3}$

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