## 202. Math Puzzle $3 / 82$

On one day, a cooperative delivered 1680 kilograms of milk to the dairy. The cream obtained from this amounted to $1 / 8$ of this quantity. The butter produced amounted to $1 / 3$ of the cream quantity. How much cream and butter were produced?

How many kilograms of butter did the dairy workers produce the next day when they obtained 240 kilograms of cream? How many kilograms of milk did the cooperative farmers deliver $\mathrm{ab}$ ?
From the $1680 \mathrm{~kg}$ of milk on the first day:

$1680: 8=210$, i.e., $210 \mathrm{~kg}$ of cream was obtained;

$210: 3=70$, i.e., $70 \mathrm{~kg}$ of butter was obtained.

On the second day: $240: 3=80$, i.e., $80 \mathrm{~kg}$ of butter was produced;

$240 \cdot 8=1920$, i.e., $1920 \mathrm{~kg}$ of milk were delivered.