Question

For the sequence that has two arithmetic means between -1 and 59.

Answer 1

A. S. is a, a + d, a+ 2d, a + 3d

a = -1 and a + 3d = 59
so - 1 + 3d = 59
3d = 60
d = 20

So the 2 arithmetic means are -1 + 20 and -1 + 40
= 19 and 39 answer

Answer 2

Your answer would be Option B ;)