`E_(P)=(% "change in " Q_(d))/(% " change in P")`
`(-)1 =(% " change in " Q_(d))/(-10%)`
`:.% "change in " Q_(d)=+10%`.
Demand after price falls `=Q+10% " of " Q=60+...
Given `P_(x)=4,P_(y)=5and MU_(x)=5,MU_(y)=4` , a consumer will be in equilibrium when :
`(MU_(x))/(P_(x))=(MU_(y))/(P_(y))`
Substituting values , we find that
`(5)/(4)gt(4)/(5)" Or " (MU_(x))/(P_(x))gt(MU_(y))/(P_(y))`
Since per rupess `MU_(x)` is higher than...