Traditional Culture Encyclopedia - The 24 Solar Terms - In order to celebrate New Year's Day, the students in Class 6 (1) decorated the classroom with red, yellow and blue balloons and hung them in the following order. If a * * * hangs up 1.
In order to celebrate New Year's Day, the students in Class 6 (1) decorated the classroom with red, yellow and blue balloons and hung them in the following order. If a * * * hangs up 1.
From the meaning of the question, balloons are arranged in a circle: 1 blue, 2 yellow, 4 red; Seven balloons are a cycle, and each cycle has four red balloons; therefore
140÷7=20 (pieces);
140 balloon has 20 cycles; So "Red Balloon" has: 20×4=80 (pieces);
A: 80 Red Balloons have been registered.
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