Question

Which term of

a.P. 13, 25, 37, 49, will be 372 more than its 26th term?

Answer 1

Answer:

26 term of this ap=

13+(26-1)12=13+25*12=13+300=313

a/q,313+372=685

13+(n-1)12=685

(n-1)12=672

(n-1)=56

n=57

required term is 57