Maths Olympiad Prep

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Algebra Difficulty 5.6 AIME, harder Find the answer

11. An old receipt has faded. It reads 88 chickens at a total of 8x4.2y8 x 4.2 y where xx and yy are unreadable digits. How much did each chicken cost?

A number or a short expression. Spacing and $ signs are ignored.

Solution

11.73 c

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Source: NuminaMath-1.5, licensed Apache-2.0. Statement and solution reproduced as published; topic and difficulty added by this site.