Question

if S31=186 then t16=?​

Answer 1

Step-by-step explanation:

if S31=186 then we have

31/2(2a+30d)=186

or 1/2(2a+30d)=6

=(2a+30d)=12

=(a+15d)=6------(1)

Now, t16= a+(n-1) ×d

=t16=a+(16-1)×d

=t16=a+15d

So from (1) equation we get, t16=6

Answer 2

Step-by-step explanation:

if S31=186 then we have

31/2(2a+30d)=186

or 1/2(2a+30d)=6

=(2a+30d)=12

=(a+15d)=6------(1)

Now, t16= a+(n-1) ×d

=t16=a+(16-1)×d

=t16=a+15d

So from (1) equation we get, t16=6