=18L Quantity of water =2L In second container, Quantity of milk =5×
80
100
=4L Quantity of water = 1L In third container, Quantity of milk =9×
70
100
=6.3L Quantity of water =2.7L After mixing : total milk =18+4+6.3=28.3L total water =2+1+2.7=5.7L Ratio milk and water after mixing =28.3L:5.7L=5:1 (approx)