How many three digit number formed by using 2,3,4,5,6,7 once such that number is divisible by 15. Select the correct option.
A) 8  B) 13  C) 12  D) 20  E) 22
4*2*1= 
<gadget id="calculator">4*2*1</gadget>
<output>8</output>
8   at one's place only 5 will come   and at ten's place 4 and 7 can be placed,   and at 100th place rest of the 4 digits can come...   so the answer is 8   8NSWER:8
<result>A</result>
How many three digit number formed by using 2,3,4,5,6,7 once such that number is divisible by 15.