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Slav-nsk [51]
3 years ago
6

Suppose there are two routes from North Point to Boulder Creek, four routes from Boulder Creek to Beaver Dam, four routes from B

eaver Dam to Star Lake, and three routes directly from Boulder Creek to Star Lake. (Hint: Draw a sketch. Assume each route can only visit a city at most one time.)(a)How many routes from North Point to Star Lake pass through Beaver Dam?Incorrect: Your answer is incorrect.(b)How many routes from North Point to Star Lake bypass Beaver Dam?

Mathematics
1 answer:
Goshia [24]3 years ago
3 0

Answer:

(a)32 Routes

(b)6 routes

Step-by-step explanation:

The sketch of the route is attached below

If an operation takes j steps, where the first step can be performed in n_1 ways, the second step takes n_2 ways and the jth step can be performed in n_j ways,

then the operation can be performed in: n_1n_2...n_j \: ways.

(a)Number of Routes from North Point to Star Lake pass through Beaver Dam.

Number of routes from North Point to Boulder Creek=2

Number of routes from Boulder Creek to Beaver Creek=4

Number of routes from Beaver Creek to Star Lake=4

Number of Routes from North Point to Star Lake pass through Beaver Dam=2X4X4=32 routes

(b)Number of routes from North Point to Star Lake which bypass Beaver Dam.

Number of routes from North Point to Boulder Creek=2

Number of routes from Boulder Creek directly to star Lake=3

Number of routes from North Point to Star Lake which bypass Beaver Dam=2X3 =6 routes

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