Question

Which term of AP 12, 7,2-3_____is98

Answer 1

it cant be 98 as it is going in negative and the common difference is -5 and you cant get +98.well if you are asking for -98 then the ans is

a=12   d=-5  an= -98
an= a+(n-1)d
-98= 12+(n-1)-5

-98 -12=(n-1)-5
-110=(n-1)-5
-110/-5=n-1
22=n-1
n=22+1
n=23

Answer 2

Answer:

n=23

Step-by-step explanation:

Ans briefly explained in the following image.