Question

which term is 0 of the AP 27,24,21,........?​

Answer 1

S=n/2(2a+(n-1)d)

=>0=n/2(2×27+(n-1)(-3))

=>0=54-3n+3

=>3n=57

=>n=57/3=19

therefore 19 terns of the given AP must be added to give the sum 0

HOPE IT HELPS

Answer 2

Hey Mate!!!

AP: 27,24,21.....

a = 27

d = -3

an = 0

n = ?

an = a+(n-1)d

0 = 27+(n-1)-3

-27/-3 = n-1

n = 9+1

n = 10

So, 0 is the 10th term of the AP.

Hope it helps......