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7 December, 01:53

The sum of 4 consecutive odd numbers is40. What is the second number in this sequence?

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  1. 7 December, 03:52
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    The difference between any two consecutive odd numbers is 2.

    Let the smallest number be x.

    The other three numbers are x + 2, x + 4, x + 6.

    Their sum is 40.

    x + x + 2 + x + 4 + x + 6 = 40

    4x + 12 = 40

    4x = 28

    x = 7

    The second number is x + 2 = 7 + 2 = 9.

    Answer: 9
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