In how many ways can a team of 4 persons be formed out of a total of 8 persons such that two particular persons should be included in each team?  Choose the most appropriate option:
A) 15	B) 20	C) 18	D) 22	E) 30
Two particular persons should be included in each team. Therefore we have to select remaining 4-2= 
<gadget id="calculator">4-2</gadget>
<output>2</output>
2 persons from   8-2= 
<gadget id="calculator">  8-2</gadget>
<output>6</output>
6 persons.   Hence, required number of ways= 6C2 = 15   15nswer is 15
<result>A</result>
In how many ways can a team of 4 persons be formed out of a total of 8 persons such that two particular persons should be included in each team?