The sum of n terms of a series in A.P is 6n2 + 6n. What is the 4 th term of the series?	Choose the correct answer.
A) 38 B) 49 C) 60 D) 48 E) 50
4 th term = sum of 4 terms - sum of 3 terms   = ( 6* 42 + 6*4 ) -( 6* 32 +6*3 ), = ( 96+24 ) – ( 54+18 )   = 120 - 72= 
<gadget id="calculator">120 - 72</gadget>
<output>48</output>
48   ANSWER:48
<result>D</result>
The sum of n terms of a series in A.P is 6n2 + 6n. What is the 4 th term of the series?