If one of the followings is the product of the two 3-digit integers 8K6 and 6L9 (K and L denote the tens digit of the respective integers), then that product must be	Choices.
A) 478,823  B) 511,913  C) 531,875  D) 538,424  E) 569,112
To know the unit digit you can multiply both digit number: 6 x 9 = 54   This eliminates A,C, B, and E, because the number must end with a 4   So the answer is 538,424
<result>D</result>
If one of the followings is the product of the two 3-digit integers 8K6 and 6L9 (K and L denote the tens digit of the respective integers), then that product must be