A whiskey contains the ratio of alcohol and water in the ratio (1: 3) and Beer contains alcohol and water in the ratio (3:37). A person mixed 800 ml whiskey and 1200 ml beer in a container. If he take out 1000 ml mixture from container and mixed 1000 ml whiskey, then the ratio of alcohol and water becomes in container is.

Whiskey (800ml, 1:3): alcohol = 200ml, water = 600ml. Beer (1200ml, 3:37): total parts = 40, alcohol = 90ml, water = 1110ml. Initial mixture: 290ml alcohol, 1710ml water. Removing 1000ml proportionally removes 145ml alcohol + 855ml water, leaving 145ml alcohol, 855ml water. Adding 1000ml whiskey (1:3 = 250ml alcohol, 750ml water): final alcohol = 395ml, final water = 1605ml. Ratio 395:1605 = 79:321. Answer D is correct.