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uranmaximum [27]
4 years ago
9

There are three different routes connecting city A to city B. How many ways can a round trip be made from A to B and back? How m

any ways if it is desired to take a different route on the way back?
Mathematics
1 answer:
TiliK225 [7]4 years ago
8 0

Answer:

a) 9 ways.

b) 6 ways.

Step-by-step explanation:

We know that there are three different routes connecting city A to city B.  

We calclulate  how many ways can a round trip be made from A to B and back. We conclude that the exists 3·3 = 9 ways.

We calclulate  how  many ways can a  trip be made from A to B if it is desired to take a different route on the way back. We conclude that the exists

3·2 = 6 ways.

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