A pizza shop made pizzas with many flavours. There are 9 different flavours, in that 2 flavours are taken to make pizza. In how many ways they can arrange?	Options:
A) 16 B) 26 C) 36 D) 46 E) 56
the answer is 36.because 2 is taken from 9 so its arranged in 9p2 ways i.e., 72   But 2 flavours may be same so it is arranged in 2! ways i.e., 9p2/2!=72/2= 
<gadget id="calculator">72/2</gadget>
<output>36</output>
36   ANSWER:36
<result>C</result>
A pizza shop made pizzas with many flavours. There are 9 different flavours, in that 2 flavours are taken to make pizza. In how many ways they can arrange?