A five digit number divisible by 7 becomes divisible by 3 when 13 is added to it. The largest such number is :  Options.
A) 54375  B) 54354  C) 54336  D) 54341  E) 54012
Out of all the 5 options, only 54341 is NOT divisible by 3. All others are divisible   So Answer = 54341 (No further calculation required)   Addition of any two non-divisible numbers by 3 gives the resultant divisible by 3   13 is non-divisible by 3; we are adding a number to that so that the resultant becomes divisible by 3   Applying the above rule,It means that the number which we are going to add should be non-divisible by 3   So comes the answer = 54341   Answer : 54341
<result>D</result>
A five digit number divisible by 7 becomes divisible by 3 when 13 is added to it. The largest such number is :