Question

which term of AP 10, 90 ,80... is 0​

Answer 1

Answer:

100......................

Answer 2

Answer:

11th term

Step-by-step explanation:

The given question needs correction,

Which term of A. P. 100, 90, 80, .......... is 0?

Let 'n'th term of AP be 0.

Now, we know that,

tn = a + (n - 1)d

Here, tn = 0, a = 100, d = 90 - 100 = - 10

Substituting the values,

0 = 100 + (n - 1) * ( - 10 )

- 10(n - 1) = - 100

- 10n + 10 = - 100

- 10n = - 110

10n = 110

n = 11

Required term = 11th