Question

13, 11, 9, 7, In this A.P. which term number is -5?​

Answer 1

Answer:

the nth term is 10

Step-by-step explanation:

a=13

d=11-13=-2

an= - 5           n=?

an=a+(n-1)d

-5=13+(n-1)*(-2)

-5-13=n-1*(-2)

-18=n-1 *(-2)

-18/-2=n-1

9=n-1  , 10=n

n=10 (ANS)