Egypt's central bank said it sold $526 million in one-year US-dollar-denominated treasury bills on Tuesday, more than the $500 million it originally sought. The weighted average yield edged up to 3.715 per cent from 3.706 per cent at the last issue on May 15. The central bank received bids worth $890 million, with yields on the accepted bids ranging from 3.7 to 3.73 per cent .