Question

If a = 25, 6th term is 20 then which term of this AP will be zero?

Answer 1

Answer:

If a = 25, 6th term is 20 then which term of this AP will be zero?

Step-by-step explanation:

$a_{n}$ = a+ (n-1) d

$a_{6} =$  a + (6 -1)d

  20 =   25 + 5d

20 -25 = 5 d

-5 = 5 d

-1 = d

which term of ap is zero

0 = 25 + (n-1) (-1)

-25 = - (n-1)

25 =  n-1

26 = n