Question

For what value of P, are 2p-1, 7 and 3p three consecutive terms of an A.P.

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Answer 1

if they are in AP, their common difference is same

2p-1-7=7-3p

5p=15

p=3

Answer 2

Answer:

p=3

Step-by-step explanation:

a=2p-1

a2= 7

a3= 3p

a3- a2= d

3p -7= d------(1)

a2=a+d

7= 2p-1+d

Substituting (1) in the equation

7= 2p-1+3p-7

7=5p-8

7+8=5p

15/5=p

p=3

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