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Hi, pls explain how did you get 5p Red & 10p Yellow for Janice. thanks.

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In the end, 6/11 of Janice’s ribbons are red. That means red to yellow = 6 : 5.

In the beginning, Janice’s red to yellow is 1 : 2.

Since there is no change in the yellow, take the LCM of 5 and 2, which is 10.

In the beginning, red : yellow = 5p : 10p.

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