In how many different ways can the letters of the word 'RETAIL' be arranged such that the vowels must occupy only the odd positions?	Answers.
A) None of these	B) 64	C) 120	D) 360	E) 36
OEOEOE   3 vowels EAI can be arranged on odd places in 3!=6 ways. Similarly 3 consonants can be arranged on even places in 3!=6 ways.   Total = 6*6= 
<gadget id="calculator">6*6</gadget>
<output>36</output>
36.   Answer: 36.
<result>E</result>
In how many different ways can the letters of the word 'RETAIL' be arranged such that the vowels must occupy only the odd positions?