How many 13 digit numbers are possible by using the digits 1,2,3,4,5 which are divisible by 4 if repetition is allowed?	Choose one
A) 511 B) 519 C) 515 D) 512 E) 513
By divisibility rule of 4(Click here to know about the rule of divisibility ) only 12,24,32,44,52 are the numbers from 1 to 5 are divisible by 4.   So the remaining 11 digits can be any number from 1 to 5. So 511   Since there are 5 set of numbers we will get 5* 511 = 512 numbers divisible by 4.   Answer 512
<result>D</result>
How many 13 digit numbers are possible by using the digits 1,2,3,4,5 which are divisible by 4 if repetition is allowed?