Math

If the sum of the five consecutive integers is 80, what is the value of sum of the least of these integers and the median of these integers? Can you explain it?

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  1. first number: a

    second number: a + 1

    third number: a + 2

    fourth number: a + 3

    fifth number: a + 4

    a + a + 1 + a + 2 + a + 3 + a + 4 = 80

    5 a + 10 = 80 Subtract 10 to both sides

    5 a + 10 - 10 = 80 - 10

    5 a = 70 Divide both sides by 5

    a = 70 / 5 = 14

    The numbers :

    14, 15, 16, 17, 18

    The least of these integers = 14

    The median value of this set of numbers = 16

    14 + 16 = 30

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