Question

Find the 25th term of an A.P. -5,-5/2 0,5/2....,

Answer 1

In the given series, a = -5 , d=-5/2-(-5) = (-5+10)/2 = 5/2
25th term = a+24d = -5+24(5/2) = -5 + 12(5) = -5+60 = 55