Eight cards numbered from 1 to 8 are placed in an empty bowl. First one card is drawn and then put back into the bowl, and then a second card is drawn. If the cards are drawn at random and if the sum of the numbers on the cards is 10, what is the probability that one of the two cards drawn is numbered 4?  Choose the correct choice from the following answers.
A) 1/5 B) 2/5 C) 1/7 D) 2/7 E) 3/7
There are 7 ways to get a total sum of 10.   2 of these ways include the number 4.   The probability that one of the cards is a 4 is 2/7   The answer is 2/7.
<result>D</result>
Eight cards numbered from 1 to 8 are placed in an empty bowl. First one card is drawn and then put back into the bowl, and then a second card is drawn. If the cards are drawn at random and if the sum of the numbers on the cards is 10, what is the probability that one of the two cards drawn is numbered 4?