How many vendors are involved in three transactions

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Reference no: EM133931895

Assignment:

Before a market opens to the public, there are 240 transactions amongst its 300 vendors. Each transaction involves two different vendors exchanging goods with each other. Each vendor is involved in at least one transaction. No vendor is involved in more than three transactions. Half of the vendors are involved in exactly two transactions. How many vendors are involved in three transactions?

Reference no: EM133931895

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