Article A
C.P. of article A=4000 Rs.
Loss =15%
S.P=85100×4000=3400Rs.
Article B
C.P. of article B=4000 Rs.
Profit=25%
S.P.=125100×4000=5000Rs.
Total S.P. of A,B and C=3960×3=11880Rs.
Then S.P. of article C=11880−(3400+5000)
=3480Rs.
Loss=4000−3480=520Rs.
Losspercentage=5204000×100=13%