One chicken lays two eggs in three days. How many eggs do three chickens lay in nine days?

Question

A can lay railway track between two given stations in 16 days and B can do the same job in 12 days. With help of C, they did the job in 4 days only.
Then, C alone can do the job in how many days ?

Answer 1

18 Eggs

As 1 Chicken lays 2 Eggs in 3 Days,
So, 3 Chicken lays 6 Eggs in 3 Days
And thus, 3 Chicken lays 18 Eggs in 9 Days

Answer 2

One chicken lays 6 eggs in 9 days
Second chicken lays 6 eggs in 9 days
Third chicken lays 6 eggs in 9 days
So they lay 18 eggs in 9 days
So the answer is 18

Answer 3

2 eggs/3 days=2/3 egg per day
2/3 egg per day/1 chicken=2/3 egg per day per chicken
3 chickens x 9 days x 2/3 egg per chicken per day=18 eggs
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