Answer :
let the cost price of cow and calf be x and y respectively
1.1x+1.25y=760
1.25x+1.1y=767.5
solve the both equations
u get x=350
y=300
so calf costs 300 and cow costs 350
1.1x+1.25y=760
1.25x+1.1y=767.5
solve the both equations
u get x=350
y=300
so calf costs 300 and cow costs 350