为了防沙治沙，政府决定投入资金，鼓励农民植树种草，经测算，植树1亩需资金200元，种草1亩需资金100元，某组农民计划在一年内完成2400亩绿化任务，在实施中由于实际情况所限，植树完成了计划的90%，但种草超额完成了计划的20%，恰好完成了计划的绿化任务，那么计划植树、种草各多少亩？若设该组农民计划植树x亩，种草y亩，则可列方程组为（ ）
A. | | x+y=2400 | | x-90%+y(1-20%)=2400 |
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B. | | x+y=2400 | | (1-90%)x+(1+20%)y=2400 |
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C. | | x+y=2400 | | (1+90%)x+(1+20%)y=2400 |
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D. | | x+y=2400 | | 90%x+(1+20%)y=2400 |
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为了防沙治沙，政府决定投入资金，鼓励农民植树种草，经测算，植树1亩需资金200元，种草1亩需资金100元，某组农民计划在一年内完成2400亩绿化任务，在实施中由于实际情况所限，植树完成了计划的90%，但种草超额完成了计划的20%，恰好完成了计划的绿化任务，那么计划植树、种草各多少亩？若设该组农民计划植树x亩，种草y亩，则可列方程组为（ ）
A. | | x+y=2400 | | x-90%+y(1-20%)=2400 |
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| | x+y=2400 | | x-90%+y(1-20%)=2400 |
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| | x+y=2400 | | x-90%+y(1-20%)=2400 |
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| | x+y=2400 | | x-90%+y(1-20%)=2400 |
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| | x+y=2400 | | x-90%+y(1-20%)=2400 |
| |
| | x+y=2400 | | x-90%+y(1-20%)=2400 |
| | x+y=2400 |
| x-90%+y(1-20%)=2400 |
| x+y=2400 |
| x-90%+y(1-20%)=2400 |
| x+y=2400 |
x+y=2400 | | x-90%+y(1-20%)=2400 |
x-90%+y(1-20%)=2400 | | B. | | x+y=2400 | | (1-90%)x+(1+20%)y=2400 |
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| | x+y=2400 | | (1-90%)x+(1+20%)y=2400 |
| |
| | x+y=2400 | | (1-90%)x+(1+20%)y=2400 |
| |
| | x+y=2400 | | (1-90%)x+(1+20%)y=2400 |
| |
| | x+y=2400 | | (1-90%)x+(1+20%)y=2400 |
| |
| | x+y=2400 | | (1-90%)x+(1+20%)y=2400 |
| | x+y=2400 |
| (1-90%)x+(1+20%)y=2400 |
| x+y=2400 |
| (1-90%)x+(1+20%)y=2400 |
| x+y=2400 |
x+y=2400 | | (1-90%)x+(1+20%)y=2400 |
(1-90%)x+(1+20%)y=2400 | | C. | | x+y=2400 | | (1+90%)x+(1+20%)y=2400 |
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| | x+y=2400 | | (1+90%)x+(1+20%)y=2400 |
| |
| | x+y=2400 | | (1+90%)x+(1+20%)y=2400 |
| |
| | x+y=2400 | | (1+90%)x+(1+20%)y=2400 |
| |
| | x+y=2400 | | (1+90%)x+(1+20%)y=2400 |
| |
| | x+y=2400 | | (1+90%)x+(1+20%)y=2400 |
| | x+y=2400 |
| (1+90%)x+(1+20%)y=2400 |
| x+y=2400 |
| (1+90%)x+(1+20%)y=2400 |
| x+y=2400 |
x+y=2400 | | (1+90%)x+(1+20%)y=2400 |
(1+90%)x+(1+20%)y=2400 | | D. | | x+y=2400 | | 90%x+(1+20%)y=2400 |
| |
| | x+y=2400 | | 90%x+(1+20%)y=2400 |
| |
| | x+y=2400 | | 90%x+(1+20%)y=2400 |
| |
| | x+y=2400 | | 90%x+(1+20%)y=2400 |
| |
| | x+y=2400 | | 90%x+(1+20%)y=2400 |
| |
| | x+y=2400 | | 90%x+(1+20%)y=2400 |
| | x+y=2400 |
| 90%x+(1+20%)y=2400 |
| x+y=2400 |
| 90%x+(1+20%)y=2400 |
| x+y=2400 |
x+y=2400 | | 90%x+(1+20%)y=2400 |
90%x+(1+20%)y=2400 | |