Question

6
For what value of p : 2p+1, 13, 5p-3 are in A.P​

Answer 1

a2-a1 = a3-a2

13-2p+1=5p-3-13

14-2p=5p-16

-2p-5p =-16-14

-7p = -30

p=30/7

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Answer 2

Answer:

$a2 - a1 = a3 - a2$

$13 - 2p + 1 = 5p - 3 - 13$

$14 - 2p = 5p -16$

$- 2p - 5p = - 16 - 14$

$- 7p = - 30$

$p = \frac{30}{7}$

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