DRA, CPA ad SEC. 2 WHAT CONSTITUTES CERTAINTY AS TO SUM .- THE Sum PAYABLE IS A SUM CERTAIN WITHIN THE MEANING OF THIS ACT, ALTHOUGH IT IS to BE PAID : a ) With Interest ; or ( 6 ) by stated installments; or ( c ) by stated installments, with a provision that , upon default in payment if any installment or of interest, the whole shall become due ; or ( d) with exchange, whether at a fixed rate or at the current rate ; or ( e) with costs of collection or an attorney's fee, in case payment shall not be made at maturity. SEC. 3 WHEN PROMISE IS UnconDITIONAL. - AN UNQUALIFIED ORDER OR PROMISE TO PAY IS Uncon DITIONAL WITHIN THE MEANING OF THIS ACT THOUGH COUPLED WITH : ( a) An indication of A particular fund out of which reimbursement is to be made or a particular account to be debited with the amount; or ( b) A statement of the transaction which give rise to the instrument. But an order to promise to pay out of a particular fund is not unconditional