THATCHER SAYS TRADE TARGETS SET WITH MOSCOW British Prime Minister Margaret Thatcher said she and Soviet Premier Nikolai Ryzhkov had set targets for increased trade between the two countries during talks earlier today. She said she hoped more economic exchanges between Britain and the Soviet Union "will also lead to increased friendship and increased understanding." Earlier, she told a meeting of Soviet and British businessmen that she had agreed with Ryzhkov that they would work to achieve a total volume of 2.5 billion roubles in bilateral trade by 1990. This would entail an increase by each side of 350 to 400 mln stg over their present export levels. "Mr Ryzhkov handed me a list of import and export opportunities which I hope you will all jump at," she told the meeting to mark the opening of new offices of the British- Soviet Chamber of Commerce. After her talks with Ryzhkov, Thatcher and the Soviet Premier were joined for the signing of agreements covering new scientific and cultural exchanges by Kremlin leader Mikhail Gorbachev, who had nine hours of talks with her yesterday.