1.

In how many ways can 5 persons sit in a car, two including the driver in the front seat and 3 in the back seat. If two particular person out of the 5 are to avoid the driver’s seat?

Answer»
Drive side seat 4 waysDriver -3 ways
Back seat - 3 waysBack seat 2 waysBack seat 1 ways

Hence by fundamental principle of counting there are 3 × 4 × 3 × 2 × 1 = 72 different ways.



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