Suppose you can travel from a place A to a place B by 3 buses, from place Bto place C by 4 buses, from place C to place D by 2 buses and from place D to place E by 3buses. In how many ways can you travel ?from A to E?
Suppose you can travel from a place A to a place B by 3 buses, from place Bto place C by 4 buses, from place C to place D by 2 buses and from place D to place E by 3buses. In how many ways can you travel ?from A to E? Correct Answer 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
মোঃ আরিফুল ইসলাম
Feb 20, 2025