The correct option is D Cannot be determined
Let the expenditure of company 'A' be Rs a
Then, expenditure of company B = Rs (135.5 - a)lac
Now, (I1−a)a×100=45 [company A]...(i)
and [I2−(13.5−a)](13.5−a)×100=50 [company B]...(ii)
Here, we have three unknowns but two equations.
Hence, I1+I2 cannot be determined.