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  • There are 60 birds in three trees.After a while 4 birds fly to the second tree from the frist tree

    There are 60 birds in three trees.After a while 4 birds fly to the second tree from the frist tree
    and 7 birds fly to the third tree from the second tree.Then there are 20 birds in every tree.Do you know how many birds are there in every tree at first?
    Key:____(the 1st tree),____(the 2nd tree),____(the 3rd tree)
    英語人氣:441 ℃時間:2019-08-19 18:44:11
    優(yōu)質解答
    Key:24(the 1st tree),
    9(the 2nd tree),
    27(the 3rd tree)
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