If -8, m, n, 19 are in arithmetic progression, find (m, n)

A.

1, 10

B.

2, 10

C.

3, 13

D.

4, 16

View answer & explanation

Correct answer is A

-8, m, n, 19 = m + 8

= 19 - n

m + n = 11

i.e. 1, 10

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