Question
PSLE
The graph shows the number of massage chairs sold from July to November. The number of massage chairs sold in August is equal to the average number of massage chairs sold from August, September, October and November. Find the number of massage chairs sold in July.

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PSLE
The graph shows the number of massage chairs sold from July to November. The number of massage chairs sold in August is equal to the average number of massage chairs sold from August, September, October and November. Find the number of massage chairs sold in July.