If log3(2), log3(2x - 5), log3(2x - 7/2) are in arithmetic progression, then the value of x is equal to
Choose the correct choice
A) 5
B) 4
C) 2
D) 3
E) 1
Explanation :   Using log a – log b = log(a/b) ,   =&gt; 2/(y-5) = (y-5) / (y-3.5), where y = 2x.   Solving we get, y= 4 or 8 i.e x = 2 or 3.   It can't be 2 as log of negative number is not deifned.   Answer : 3
<result>D</result>
If log3(2), log3(2x - 5), log3(2x - 7/2) are in arithmetic progression, then the value of x is equal to