Question

The sum of 3 consecutive even numbers is 78.

What is the second number in thiss sequence

Answer 1

Answer:

26

Explanation:

If the number of a set of consecutive numbers is odd, the sum of the consecutive numbers is the number of consecutive numbers * the middle number.

Here, the sum is 78.

We can find the middle number, in this case, the 2nd, by diving 78 by 3.

783=26

The second number is 26.
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Answer 2

Hello dear

$x + (x + 2) + (x + 4) = 78 \\ \\ = > x + x + 2 + x + 4 = 78\\ \\ = > 3x + 6 = 78\\ \\ = > 3x = 78 - 6 \\ \\ 3x = 72 \\ \\ = > x = \frac{72}{3} \\ \\ = > x = 24$
$1 \: number \: = 24\\ 2 \: number \: = x + 2 = 24 + 2 \\ = 26 \\ 3 \: number \: = x + 4 = 24 + 4 \\ = 28 \\ \\ 24 + 26 + 28 = 78$
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