Fifth-grade students in Yuhong Primary School carry out water-saving activities. A class of 4 1 person, saving water1.20kg per day on average; There are 42 people in 52 classes, saving water 130 kg on average every day; There are 40 people in 53 classes, saving an average of 98 kilograms of water every day. Which class has the best water-saving activities?

5 1 grade120 ÷ 41≈ 2.93kg.

Grade 52130 ÷ 42 ≈ 3.10kg

Class 53 98 ÷ 40 = 2.45kg.

3. 10 >2.93 & gt2.45

So saving water in Class 52 is the best activity.