If a customer has given a rating of "5" to an item he purchased, then how many more should give their own ratings in order to keep the overall/average rating of "1" to the same item?

Average rating = \(\frac{R}{C}\) where R = Sum of all ratings & C = Number of customers

- Each customer is allowed to give only 1 rating
- The ratings should only be given among 1 or 2 or 3 or 4 or 5
- No decimal values are allowed

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