Question

if the 10th term of an ap is 20 and common difference c is 2 then find the fourth term​

Answer 1

Answer:

a + 9d = 20

a + 9 × 2 = 20

a = 20 - 18

a = 2

a4 = a + 3d

= 2 + 6

= 8

Answer 2

Step-by-step explanation:

a+9d=20 -(1)

d=2

a+3d=?

so put the value of d in 1

a+9(2)=20

a+18=20

a= 20-18

a=2

so a+3d

= 2+3*2

a4= 2+6

a4=8