What is the sum of the integers from -60 to 65, inclusive?	Choose the correct choice from the following choices:
A) 315
B) 215
C) 115
D) 165
E) 765
In an arithmetic progression,   the nth term is given by tn=a+(n-1)d   here tn=65, a=-60, d=1   hence, 65=-60+(n-1)   or n=126   Sum of n terms can be calculated by sn=n/2(a+l)   a=first term, l=last term, n=no. of terms   sn=126*(-60+65)/2   sn=126*5/2= 
<gadget id="calculator">126*5/2</gadget>
<output>315</output>
315   315nswer : 315
<result>A</result>
What is the sum of the integers from -60 to 65, inclusive?