Question

Needing help, the secretary of the united states department of agriculture asked your teacher, “if a chicken-and-a-half can lay an egg-and-a-half in a day-and-a-half, how many days will it take one chicken to lay a dozen eggs?”

Answer 1

You have 1 chicken to lay 12 eggs... So now set up the following:
1.5 chicken : 1.5 eggs : 1.5 days
3 chickens : 3 eggs : 1.5 days
1 chicken : 1 egg : 1.5 days

So...for 1 chicken to lay 12 eggs, it takes 12 x 1.5 days = 18 days.