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Do you want to write math problems in Erdao Primary School?
I. 1. Percentage of unqualified persons:1-35%-45%-17.5% = 2.5%.

2. Excellent: 200x35%=70 people

Good: 200x45%=90 people

Pass 200x 17.5%=35 people.

Failure: 200x2.5%=5 people.

Two. 1 10% 35% 25%

2. Food: 1000X35%=350 yuan.

Housing loan: 1000X25%=250 yuan.

Medical treatment:1000x15% =150 yuan.

Education water and electricity:1000x10% =100 yuan.

Other: 1000X5%=50 yuan.

3. What does Xiaoling spend the most, and how much?

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