1. In the "Sweet Tooth" store, they are thinking of what promotion to announce before March 8. Manager Vasya suggests reducing the price of a box of candies by $20 \%$ and hopes to sell twice as much of the product as usual. Deputy Director Kolya says that it would be more profitable to increase the price of the same box of candies by a third and announce a promotion "buy two, get one free," in which case sales will remain the same (not counting the free items). In whose version of the promotion will the revenue be higher? In the answer, write how much more revenue there will be if the usual revenue from selling boxes of candies is 10000?
Answer: 6000.

Let the box of candies cost $\mathrm{X}$ rubles.

In Vasya's option, the revenue will be $(10000 / \mathrm{X}) * 2 * 0.8 * \mathrm{X}=16000$ rubles.

In Kolya's option: $(10000 / X) * 4 / 3 * X=13333.(3)$.

Thus, the revenue will be higher in Vasya's option, and it will be 6000 rubles more than usual.