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

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