Question
PSLE
The graph shows the number of projectors sold from June to September. The number of projectors sold in September is equal to the average number of projectors sold from June to August. Find the number of projectors sold in September.

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PSLE
The graph shows the number of projectors sold from June to September. The number of projectors sold in September is equal to the average number of projectors sold from June to August. Find the number of projectors sold in September.