In how many ways Chief Minister and Minister be elected from a team of 10 members? Choose the correct choice from the following answers: A) 90 B) 95 C) 120 D) 100 E) 165
To do this, if captain is elected first, then we have 10 ways of doing this.   For election of vice-captain, we have only 9 ways left, coz 1 way is already consumed. (Situations like this is called dependent situation. One selection depends upon other selection.)   So, the ans is 10*9= 
<gadget id="calculator">10*9</gadget>
<output>90</output>
90 ways.   90
<result>A</result>
In how many ways Chief Minister and Minister be elected from a team of 10 members?