What will come in place of the x in the following Number series? 6, 12, x, 33 , 48	Choose the most appropriate option.
A) 33  B) 35  C) 39  D) 41  E) 21
The pattern is + 6, + 9, + 12, +15 â€¦â€¦â€¦..   So the missing term is = 12 + 9= 
<gadget id="calculator">12 + 9</gadget>
<output>21</output>
21   Answer : 21
<result>E</result>
What will come in place of the x in the following Number series? 6, 12, x, 33 , 48