1.

Suppose You Can Travel From A Place A To A Place B By 3 Buses, From Place B To Place C By 4 Buses, From Place C To Place D By 2 Buses And From Place D To Place E By 3 Buses. In How Many Ways Can You Travel ?from A To E?

Answer»

The bus fromA to B can be selected in 3 WAYS.

The bus from B to C can be selected in 4 ways.

The bus from C toD can be selected in 2 ways.

The bus FROMD to E can be selected in 3 ways.

So, by the General Counting PRINCIPLE, one can travel fromA to E in 3 X 4 x 2 x 3 ways = 72.

The bus fromA to B can be selected in 3 ways.

The bus from B to C can be selected in 4 ways.

The bus from C toD can be selected in 2 ways.

The bus fromD to E can be selected in 3 ways.

So, by the General Counting Principle, one can travel fromA to E in 3 x 4 x 2 x 3 ways = 72.



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