The first term of an A.P. is 5 and its 100th term is - 292. Find the 50th term of this A.P.
Given, a = 5
a100= -292
5 – 99d = -292
d = = 3
Now, 50th term, a50 = a + (50 – 1) d
= 5 + (49) 3 = 5 + 147 = 152
Hence, 50th term of given A.P. is 152