Question
PSLE
The graph shows the number of computers sold from September to December. The number of computers sold in October is equal to the average number of computers sold from September, November and December. Find the number of computers sold in October.

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PSLE
The graph shows the number of computers sold from September to December. The number of computers sold in October is equal to the average number of computers sold from September, November and December. Find the number of computers sold in October.