Question

2. Find the fourth term from the end in an A.P. -11,-8, -5, . . . , 49.
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Answer 1

Answer:

Formula for nth term from last

= l-(n-1) d

where l = last term = 49

n = the term we have to find out = 4

d = common difference = -8 -(-11) = -8+11=3

Now,

4th term from the last

= l-(n-1) d

= 49-(4-1)3

= 49- 3 X 3

= 49 - 9

= 40

I hope it will helps you.