COST OF U.S. LOAN HIGHEST SINCE '21; Treasury Will Pay Interest Rate of 53 % on Notes to Help Finance Deficit
Treas offers 5 3/4%, highest interest in 46 yrs, to sell 7-yr notes worth $1.5-billion; also offers $10.7-billion worth of 15-mo notes at 5 5/8%; borrowing since June 30 totals $16-billion; Under Sec Deming puts fiscal '68 borrowing at $20- to $22-billion if there is no tax rise