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Question
The sum of three consecutive even integer numbers is 672. The middle among the three is?
A
224.
B
225.
C
223.
D
226.
Soln.
Ans: a
Ans: a
Let the numbers be 2n - 2, 2n and 2n + 2. The sum is 6n = 3 x 2n = 3 x middle. We are given 3 x middle = 672, ⇒ middle = $672/3$, i.e., middle = 224.