In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
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Question: Problem: how many even 4 - digit numbers can be formed , so that the numbers are divisible by 4 and no two digits are repeated ?
Options: a ) 336 , b ) 784 , c ) 1120 , d ) 1804 , e ) 1936

Answer: c

Question: Problem: how many 3 - digit positive integers are there , where each digit is positive , and no 3 adjacent digits are same ?
Options: a ) 1236 , b ) 504 , c ) 4096 , d ) 4608 , e ) 6561

Answer: b

Question: Problem: the product of two numbers is 2028 and their h . c . f is 13 . the number of such pairs is :
Options: a ) 1 , b ) 2 , c ) 3 , d ) 4 , e ) 5

Answer:
b