Question

if an ap fourth term and the 13th term are in the ratio 1 is to 2 if the 10th term is 30 find AP​

Answer 1

Answer:

a4:a8=1:2

=>(a+3d)/(a+7d)=1/2

solving we will get

a=d

NOW↪↪

a10=30

=>a+9d=30

=>a= 3

AP

3, 6, 9, ....