Question

The value of a30 - a20 for the ap 2, 7, 12, 17... Is

Answer 1

Answer:

60

Step-by-step explanation:

Given:

first term(a1) = 2

common difference d= 5

a30 = a1 + (29)*d

= 2+(29)*5

=147

a20=2+(19)*5

=97

so,

a30-a20=157-97=60