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प्रश्न
If (2p – 1), 7, 3p are in AP, find the value of p.
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उत्तर
Let (2p-1) ,7 and 3p be three consecutive terms of an AP.
Then 7 - (2p -1) = 3p -7
⇒ 5 p = 15
⇒ p= 3
∴ When p =3,(2p -1), 7and 3p form three consecutive terms of an AP.
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