Read the text and choose the statement(s) that are true according to the text. Text: Two classes took part in a four-week school recycling project. In the first week, Class 9A collected 40 kg of paper and Class 9B collected 25 kg. In the second week, Class 9B collected twice as much paper as in the first week, but Class 9A collected 10 kg less than before. In the third week, the two classes together collected 100 kg of paper. Plastic bottles were added only in the fourth week, when the school bought special containers. The winning class got a trip to the botanical garden instead of money.
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Верный ответ
- DPlastic bottles were not collected during the first three weeks.
- EAfter two weeks, Class 9A had collected 5 kg less paper than Class 9B.
- FClass 9B collected 50 kg of paper in the second week.
Разбор
Week 1: 9A - 40 kg, 9B - 25 kg. Week 2: 9B collected twice as much as 25 kg, so 50 kg, which makes "Class 9B collected 50 kg of paper in the second week." true. 9A collected 10 kg less than 40 kg, so 30 kg; therefore "Class 9A collected more paper in the second week than in the first week." is false. After two weeks 9A had 40 + 30 = 70 kg and 9B had 25 + 50 = 75 kg, so "After two weeks, Class 9A had collected 5 kg less paper than Class 9B." is true. Bottles were added only in the fourth week, so "Plastic bottles were not collected during the first three weeks." is true. The prize was a trip instead of money, so "The winning class received money for the project." is false. The 100 kg in the third week is the total for both classes, so "In the third week, Class 9A alone collected 100 kg of paper." is false.