What will come in place of the x in the following Number series? 6, 12, 21, 33 , 48 ,66 , x  Choose the correct choice from the following choices:
A) 33	B) 35	C) 39	D) 41	E) 87
The pattern is + 6, + 9, + 12, +15 + 18+ 21 â€¦â€¦â€¦..   So the missing term is = 66 + 21= 
<gadget id="calculator">66 + 21</gadget>
<output>87</output>
87   ANSW87R : 87
<result>E</result>
What will come in place of the x in the following Number series? 6, 12, 21, 33 , 48 ,66 , x