A military commander has to choose 4 soldiers out of a company of 7 for guarding the headquarters. How many different group combinations of 4 does he have to choose from?  Select the correct option
A) 4
B) 15
C) 16
D) 27
E) 35
A military commander has to choose 4 soldiers out of a company of 7.   different group combinations of 4   He can do this in 7C4 ways   7*6*5*4/4*3*2*1= 35 ways   ANSW35R:35
<result>E</result>
A military commander has to choose 4 soldiers out of a company of 7 for guarding the headquarters. How many different group combinations of 4 does he have to choose from?