the number of seats is equal to the total number of rows in the hall .the total number if seats in the hall will increase by 375 if the number of rows is doubled and the number of seats in each row is reduced by 5.Find the the number of rows in the hall at the beginning
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If the number of rows is doubled and the number of seats in each row is reduced by 5, then the total number of seats in the hall will increase by 375. Number of rows can not be negative. Therefore, the number of rows in the hall is 25.
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