What is the sum of the first 25 terms of the A.P -10,-7,-4,.......?
580
650
620
560
Determine the sum of first 25 terms of an A.P whose second term is 7 and 27seventhterm is 157
Find the sum of the first 25 terms of an A.P. whose nth term is given by an=7−3n.
Sum of the first 14 terms of an A.P. is 1505 and its first term is 10. Find its 25th term.