Question

First second and third terms of a preparation and respectively 4 ,6 and, 8 find its fourth term

Answer 1

Let the first term be 'a'

& common difference be 'd'

Given

1st term,a = 4

2nd term = 6

3rd term = 8

Common difference,d = 6-4 =8-6 = 2

4th term = a + (4-1)d

= 4 + 3×2

= 4 + 6

= 10