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    The sum of the ages of five children born at the intervals of three years each is 60 years. What is the age of the youngest child?
    Question

    The sum of the ages of five children born at the intervals of three years each is 60 years. What is the age of the youngest child?

    A.

    6 years

    B.

    4 years

    C.

    5 years

    D.

    7 years

    Correct option is A

    Given:

    The sum of the ages of five children is 60 years.

    The children were born at intervals of three years each.

    Solution:

    The age of the youngest child be x

    The next child is x + 3 years old.

    The next child is x + 6 years old.

    The next child is x + 9 years old.

    The oldest child is x + 12 years old.

    Sum of the Ages:

    x+ (x+3) + (x+6) + (x+9) + (x+12) = 60

    5x +30 = 60

    5x = 60−30

    5x =30

    x = 305\frac{30}{5}

    x = 6

    The age of the youngest child is 6 years.

    Thus, correct answer is (a) 6 Years

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