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Question -

If x + 1, 3x and 4x + 2 are in A.P., find the value of x.



Answer -

x + 1, 3x and 4x + 2 are in A.P.
3x – x – 1 = 4x + 2 – 3x
=> 2x – 1 = x + 2
=> 2x – x = 2 + 1
=> x = 3
Hence x = 3

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