I am using Ubuntu 14.04.3 64-bit (mongodb-linux-x86_64-ubuntu1410-clang-3.2.4), I was able to install libC ++. so.1 related packages using the following commands:
sudo apt-get update sudo apt-get install libc++1
Note : My Ubuntu VM using an enterprise proxy, initially "sudo apt-get install lib ++ 1" gave an error. Since I have installed the Synaptic Package Manager, I tried Synaptic to install libC ++ 1 and it was successful. MongoDB started to work and worked. To check if the specified command works, I did
sudo apt-get remove libc++1 sudo apt-get install libc++1
and the teams worked. If you need to use Synaptic, here is a screenshot 
source share