In which language 3D android games are made?

Answer 1

mostly c++,c#,java and javascript

Answer 2

These are the languages and Game Engines used for 3D Game Development.

ActionScript -> Flare3D,
C++ -> Cocos2d-x, Unreal Engine,
C# -> MonoGame, Unity, CryEngine,
Java -> Java3D
JavaScript -> Cocos2d-html5, Construct,
Lua -> ShiVa
Python -> Blender, Cocos2d

Google more for your needs :)