Question

which term of an A.P. 16, 11, 6, 1,... is - 54 ?​

Answer 1

Answer:

Soln is in my attachement

hope it's helpful for u

Answer 2

Answer:

a:16

d:11-16

-5

n:?

an:-54

an=a+(n-1) d

-54=16+(n-1) -5

-54=16-5n+5

-54-21=-5n

-75/-5=n

15=n

15 is answer