Find the odds.
A number cube labeled with numbers $1,2,3,4,5$, and 6 is tossed. What are the odds in favor of the cube showing a number less than 3
A. $1: 3$
B. $1: 2$
C. $1: 1$
D. $2: 1$

Step 1 ：A number cube labeled with numbers 1,2,3,4,5, and 6 is tossed. We are asked to find the odds in favor of the cube showing a number less than 3.

Step 2 ：The odds in favor of an event are defined as the ratio of the number of successful outcomes to the number of unsuccessful outcomes.

Step 3 ：In this case, the successful outcomes are the cube showing a number less than 3, which are 1 and 2. So there are 2 successful outcomes.

Step 4 ：The unsuccessful outcomes are the cube showing a number equal to or greater than 3, which are 3, 4, 5, and 6. So there are 4 unsuccessful outcomes.

Step 5 ：Therefore, the odds in favor of the cube showing a number less than 3 are 2 to 4, or simplified, 1 to 2.

Step 6 ：Final Answer: \(\boxed{1: 2}\)