There are 21 students in a class. In how many different ways can a committee of 3 students be formed?	Options:	A) 1180	B) 1330	C) 1540	D) 1760	E) 1920
21C3 = 21*20*19 / 6= 
<gadget id="calculator">21*20*19 / 6</gadget>
<output>1_330</output>
1330   The answer is 1330.
<result>B</result>
There are 21 students in a class. In how many different ways can a committee of 3 students be formed?