Question
PSLE
The graph shows the number of stereo systems sold from May to August. The number of stereo systems sold in August is equal to the average number of stereo systems sold from May to July. Find the number of stereo systems sold in August.

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PSLE
The graph shows the number of stereo systems sold from May to August. The number of stereo systems sold in August is equal to the average number of stereo systems sold from May to July. Find the number of stereo systems sold in August.