Question

if 10, x, 3 are in A. P the value of i​s x
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Answer 1

Answer:

By A.P→a+c/2=b

a=x−1;b=x+3;c=3x−1

2

x−1+3x−1

=x+3

2

4x−2

=x+3

2x−1=x+3

2x−x=3+1

x=4.