Question
PSLE
The graph shows the number of stereo systems sold from February to June. The number of stereo systems sold in March is equal to the average number of stereo systems sold from February, April, May and June. Find the number of stereo systems sold in March.

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PSLE
The graph shows the number of stereo systems sold from February to June. The number of stereo systems sold in March is equal to the average number of stereo systems sold from February, April, May and June. Find the number of stereo systems sold in March.