There are 10 oranges in a basket. Find the no. of ways in which 2 oranges are chosen from the basket?
Choices.
A) 45
B) 90
C) 120
D) 150
E) 180
Required number of ways = 10C2 = 10*9/2= 
<gadget id="calculator">10*9/2</gadget>
<output>45</output>
45   45nswer is 45
<result>A</result>
There are 10 oranges in a basket. Find the no. of ways in which 2 oranges are chosen from the basket?