Question

If 6th term of an ap is -10 and 10th term is -26 find 15th term

Answer 1

a+5d=-10
a+9d=-26
(-) (-)    (-)
     -4d=36
       d=-9
a+5(-4)=10
a=30
so 15th term will be
a+14d
30+14(9)
30+126
=156

Answer 2

hey hii dear here is u r answer ..... .

6th term of an ap is -10

and

10th term is -26 ....

now ,

u can use the fromula of nth term

nth term = a+(n-1)+d
hope it's formula will help you