設(shè)出乙隊(duì)植數(shù)x棵,則甲隊(duì)植樹(shù)2x棵,丙隊(duì)植樹(shù)(x+200)棵,由題意得:
2x+x+x+200=1800,
4x=1800-200,
4x=1600,
x=1600÷4,
x=400;
甲隊(duì)植樹(shù):400×2=800(棵);
丙隊(duì)植樹(shù):400+200=600(棵).
答:甲隊(duì)植樹(shù)800棵,乙隊(duì)植樹(shù)400棵,丙隊(duì)植樹(shù)600棵.
三個(gè)植樹(shù)隊(duì)共植樹(shù)1800棵,甲隊(duì)植樹(shù)的棵數(shù)是乙隊(duì)的2倍,乙隊(duì)植樹(shù)的棵數(shù)比丙隊(duì)少200棵,三隊(duì)各植樹(shù)多少棵?
三個(gè)植樹(shù)隊(duì)共植樹(shù)1800棵,甲隊(duì)植樹(shù)的棵數(shù)是乙隊(duì)的2倍,乙隊(duì)植樹(shù)的棵數(shù)比丙隊(duì)少200棵,三隊(duì)各植樹(shù)多少棵?
數(shù)學(xué)人氣:781 ℃時(shí)間:2020-02-04 06:28:03
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