Question

ples answer this quickly​

Answer 1

Answer:

50

Step-by-step explanation:

a=3

a2=8

d=a2-a1

8-3=5

a30=a+29d

=3+29*5

=3+145=148

a20=a+19d

=3+19*5

=3+95=98

A/q

(a30-a20)

=(148-98)=50

Ans.50