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    Question

    The ratio of males and females in a zoo is 6:7

    respectively and the percentage of children among males and the percentage of children among females are 15% and 25% respectively. If the number of adult females in the zoo is 4725 then what will be the total population in a zoo?
    A 12144 Correct Answer Incorrect Answer
    B 18440 Correct Answer Incorrect Answer
    C 10400 Correct Answer Incorrect Answer
    D 11700 Correct Answer Incorrect Answer
    E 13440 Correct Answer Incorrect Answer

    Solution

    Let the number of males and females be 6x and 7x respectively. Percentage of children among females = 25% So, 75% of females are adults, => 75/100┬а├Ч┬а7x = 4725 => 7x = 6300 => x = 900 Total population = 6x + 7x = 13x = 13 ├Ч┬а900 = 11700

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