Question

If 5th term is 12 and 8th term is 16 what is common difference

Answer 1

Answer:

2

Explanation:

5th term= 12 = a+4d .......eq 1

8th term =18= a+7d .......eq 2

subtracting question 1 from equation 2

(a+7d)-(a+4d)=18-12

3d=6

d=2

then the common difference is 2