CBSE (Central Board of Secondary Education) was conducted the exam of PSA (Problem Solving Assessment) on 18th Jan 2013 (Today) and this exam was for class 11th.
CBSE 09th class answer key is available here, visit the link which are given below and download CBSE PSA 11th answer key 2014.
For Paper Set A1:
For Paper Set A2:
For Paper Set A3:
PSA CBSE 11th Class 2014 Answer Key Paper Set A3
For Paper Set A4:
PSA CBSE 11th Class 2014 Answer Key Paper Set A4
Note: These are tentative answer keys and are subject to modification.