1. In a transportation problem with 4 sources and 4 destinations, how many shipping lanes will exist? 2. In a transportation problem with 3 sources and 3 destinations, how many fixed requirements constraints will be needed?

1. 16

2. 6

Explanation:

1. There are 4 sources that can ship to 4 different destinations. Each of the 4 can ship to any of the 4 destinations which means that the number of shipping lanes is;

= 4 * 4

= 16

2. There are 3 sources which means the fixed requirement for sources is 3. There are 3 destinations which means the fixed requirement for destinations is 3.

The total fixed requirements are;

= 3 + 3

= 6

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