Berkshire Hathaway 1st-qtr profit rises 10 percent
May 01, 2015 at 17:16 PM EDT
OMAHA, Neb., May 1 (Reuters) - Warren Buffett's Berkshire Hathaway Inc on Friday said first-quarter profit rose 10 percent, helped by improved results in its BNSF railroad unit, as well as by gains from derivatives.