Answer:
Both the jugs have 20 litres of milk in them
Step-by-step explanation:
Let the quantity of mil be x
Jug 1= x
Jug 2= 4x
x+15=4x
15= 4x-x
15= 3x
x= 15/3
x= 5
Jug 1 (initial)= 5 litres
Jug 1 (after adding) =15+5=20
Jug 2= 4*5= 20 litres
Both the jugs have 20 litres of milk in them