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

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