Answer : 20
Explanation: Given, S.P.=
5
4
C.P.
Loss=C.P.−S.P.=C.P.−
5
4
C.P.=
5
1
C.P.
Since, SP<CP, there is a loss
Loss % =
C.P.
Loss
×100=
5
1
×100=20 %
I cant read spanish but i will try to translate and help :)
I think it is casa but i am not sure