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18 October, 11:10

In a forest 4/7 of all the trees are conifer and the rest are leaf-bearing. Among the leaf-bearing trees 7/15 are oak and 2/3 of these oaks are new. There are 160 old oaks in the forest. How many trees in all are in the forest?

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  1. 18 October, 11:33
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    2400

    Step-by-step explanation:

    no. of trees in forest = x

    leaf bearing = 3/7x

    oaks = (3/7x) * 7/15 = x/5

    old oaks = (x/5) * 1/3 = x/15 = 160

    x = 15*160 = 2400

    1028.57143 leaf bearing
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