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

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