How many 3 digit numbers can be formed from the digits 2,3,5,6,7 and 9 which are divisible by 5 and none of the digits is repeated?
Select:
A) 84	B) 23	C) 45	D) 20	E) 15
Since each desired number is divisible by 5,   so we much have 5 at the unit place.   The hundreds place   can now be filled by any of the remaining 4 digits .   so, there4 ways of filling it.   Required number of numbers = (1 * 5 * 4)= 
<gadget id="calculator">(1 * 5 * 4)</gadget>
<output>20</output>
20   Ans: 20
<result>D</result>
How many 3 digit numbers can be formed from the digits 2,3,5,6,7 and 9 which are divisible by 5 and none of the digits is repeated?