Question

If for an ap S31=186 then find t16

Answer 1

Answer:

t16=6

Step-by-step explanation:

S31=31/2*(2a+30d)=186

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

2a+30d=372/31

2(a+15d)=12

or a+15d=12/2=6

hence t16=a+15d=6

t16=6

Answer 2

Answer:

t16=6

Step-by-step explanation:

S31=31/2*(2a+30d)=186

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

2a+30d=372/31

2(a+15d)=12

or a+15d=12/2=6

hence t16=a+15d=6

t16=6