Question

Find p if 2p-1,p,3p+1 are in ap

Answer 1

Answer:

The given three numbers (2p - 1), (3p + 1) and 11 are in AP. So, the value of p is 2. i.e., 3, 7 and 11

Answer 2

in an AP, a2-a1 = a3-a2

=> p-(2p-1)=3p+1-p

=> p-2p+p=2p+1

=> 0=2p+1

=> -2p=1

=> p= -1/2

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