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Question

Write the value of x for which 2x,x+10 and 3x+2 are in A.P

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Solution

Given 2x,x+10 and 3x+2 are in A.P.
Then we'll have,
2(x+10)=2x+3x+2
or, 2x+20=5x+2
or, 3x=18
or, x=6.

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