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

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