Question
P6.RD.TL.16010177-A1
A total of 21 brown notebooks and green notebooks are in a container. The ratio of brown notebooks to green notebooks was 1 : 6. Some purple notebooks and yellow notebooks were put into the container. For every 3 green notebooks that were already in the container, 9 yellow ones were added. Then, the final number of brown notebooks and purple notebooks was 13 the final number of green notebooks and yellow notebooks. Find the total number of purple and yellow notebooks.
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STUDENT

Primary 6 RFPD P6.RD.TL.16010177

26 Jun 2024, 05:22 PM

A total of 21 brown notebooks and green notebooks are in a container. The ratio of brown notebooks to green notebooks was 1 : 6. Some purple notebooks and yellow notebooks were put into the container. For every 3 green notebooks that were already in the container, 9 yellow ones were added. Then, the final number of brown notebooks and purple notebooks was 13 the final number of green notebooks and yellow notebooks. Find the total number of purple and yellow notebooks.
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