82
a7
+ 6b
____
190
If a and b represent positive single digits in the correctly worked computation above, what is the value of a + 2b ?  Choose the correct choice from the following options:  A) 2  B) 6  C) 9  D) 11  E) 12
Adding the digits in unit's place , 2+ 7 + b = 10 (Since a and b are positive single digits )   =&gt; b = 1   Now adding the digits in ten's place , 8+a + 6 + 1= 19 (1 has been carried over from unit's place addition)   =&gt; a= 4   a+2b = 4+2*1= 
<gadget id="calculator">4+2*1</gadget>
<output>6</output>
6   Answer 6
<result>B</result>
82
a7
+ 6b
____
190
If a and b represent positive single digits in the correctly worked computation above, what is the value of a + 2b ?