Question

for the A.P. of a =7 and d=2.5 then t12

Answer 1

Your answer is :-


given, a = 7 and d = 2.5


So,

T12 = a + 11d

= 7 + 11×2.5

= 34.5

Answer 2

Here is your answer friend
t 12 =a+(n-1)d
=7+(12-1)2.5
=7+27.5
=34.5