# Aptitude | Progressions | Question 3

Find the AM of series: 10, 7, 4, 1, -2**(A)** 13/2**(B)** 14/3**(C)** 4**(D)** 16/5**Answer:** **(C)****Explanation:** AM = (a1+a2+a3+……+an)/n

=(n(a1+an)/2)/n

=a1+a2/2

=10-2/2 = 4

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Find the AM of series: 10, 7, 4, 1, -2**(A)** 13/2**(B)** 14/3**(C)** 4**(D)** 16/5**Answer:** **(C)****Explanation:** AM = (a1+a2+a3+……+an)/n

=(n(a1+an)/2)/n

=a1+a2/2

=10-2/2 = 4

Quiz of this Question

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