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    Question

    In a tree plantation, 62% of the trees are pine trees. The

    number of oak trees is 45% of the pine trees, and the number of maple trees is 66% of the oak trees. If there are 148.5 maple trees, determine the total number of trees in the plantation.
    A 806 Correct Answer Incorrect Answer
    B 720 Correct Answer Incorrect Answer
    C 620 Correct Answer Incorrect Answer
    D 700 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let total number of trees in the plantation be 100x

    Number of pine trees = 0.62 ├Ч 100x = 62x

    Number of oak trees = 0.45 ├Ч 62x = 27.9x

    Number of maple trees = 0.66 ├Ч 27.9x = 18.414x

    So, 18.414x = 148.5

    x = 8.06 (approx)

    Total number of trees in the plantation = 100x = 806

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