To get a sum of 7 , the possible combinations are (1,6),(2,5),(3,4),(4,3),(5,2), and (6,1). There are 6 ways in which two dice can be thrown, so the probability of getting a sum of 7 is 6∕36 or 1∕6. Therefore, the number of ways in which the sum can be 7 is 6 . Therefore, the answer is option 3 .