Question

find the number of term in an arithmetic series 7,13,19,........55​

Answer 1

Answer:

you have to keep on adding 6 to every number

Step-by-step explanation:

like:

7+6= 13

13+6= 19

and so on.....

Answer 2

Answer:

number of terms=9

Step-by-step explanation:

common difference=d=13-7=6

number of terms=n

7+6(n-1)=55

   6(n-1)=55-7

   6(n-1)=48

       n-1=8

          n=9