Question

1. The 12th term from we
end in A.P. 13,18,23,......,158 is​

Answer 1

Answer:

5555 is the correct answer

Answer 2

Answer:

The end term from end of the finite A.P.

If a is the first term of A.P.,

Let d be common diffrence

n is the number of terms

r th term from its end=

(n-r+1)th term from beginning.

Let the given A.P.13,18,23,...........158

=(l=a+(n-1)d)

=158=13+(n-1)*5

=n=30

12th term from end

=(30-12+1)th term (from beginning)

19th term from beginning

=a+18d

=13+18*5

=103......................Ans