Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Gerald Mann, regarding a legal question submitted for clarification: Is the contract for the lease of three pieces of road machinery for the total of $4,450.00 payable in monthly installments are paid at the aggregate price of the installments are paid at the aggregate price of the installments plus interest at six per cent from the date of payment, in violation of the statute requiring competitive bids and therefore void?