1.

A journey from place A to place B can be done by three different modes, i.e. train, bus or aeroplane. If a person wants to go from A to B and return, in how many ways this can be done?

Answer»

A journey from place A to place B can be done by three different modes, i.e. train, bus or aeroplane. If a person wants to go from A to B and return, in how many ways this can be done?




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