A, B, C are three consecutive positive integers (A>B>C). What is the value of the expression 2A +B +3C?  Choose the correct choice from the following options
A) 6A+7
B) 5A+1.
C) 5A-1.
D) 6A-5.
E) 6A-7.
A= C+2   =&gt; C = A-2   A= B+1   =&gt; B = A-1   Since the answer options contain variable A , we have to write B and C in terms of A .   2A +B +3C = 2A + (A-1) +3(A-2)   =2A + A-1 + 3A -6   =6A -7   Answer 6A-7.
<result>E</result>
A, B, C are three consecutive positive integers (A>B>C). What is the value of the expression 2A +B +3C?