2. Three classes were collecting paper. Class $A$ collected $20 \%$ more paper than Class $B$, and Class $B$ collected $20 \%$ less paper than Class $C$. How many kilograms of paper did each class collect if a total of $759 \mathrm{~kg}$ of paper was collected? Write down your answer.
2. Denote that class $C$ collected $x$ kg of paper. Then class $B$ collected $0.8 x \mathrm{~kg}$ of paper, and class $A$ collected $1.2 \cdot 0.8 \cdot x=0.96 x \mathrm{~kg}$ of paper. We have $x+0.8 x+0.96 x=759$, from which we can calculate $x=275$, and then $0.8 x=220$ and $0.96 x=264$. Class $A$ collected $264 \mathrm{~kg}$ of paper, class $B$ $220 \mathrm{~kg}$, and class $C 275 \mathrm{~kg}$ of paper.

![](https://cdn.mathpix.com/cropped/2024_06_07_06886e410b39c0216094g-07.jpg?height=48&width=1636&top_left_y=2346&top_left_x=207)

![](https://cdn.mathpix.com/cropped/2024_06_07_06886e410b39c0216094g-07.jpg?height=51&width=1639&top_left_y=2396&top_left_x=206)

![](https://cdn.mathpix.com/cropped/2024_06_07_06886e410b39c0216094g-07.jpg?height=57&width=1636&top_left_y=2444&top_left_x=210)

![](https://cdn.mathpix.com/cropped/2024_06_07_06886e410b39c0216094g-07.jpg?height=54&width=1639&top_left_y=2497&top_left_x=206)

![](https://cdn.mathpix.com/cropped/2024_06_07_06886e410b39c0216094g-07.jpg?height=60&width=1642&top_left_y=2546&top_left_x=207)

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