This is my question

Peter and Mary like to play a game in which they throw a dice three times and used the values to ll the 3 bottom cells of a maths pyramid, in which each upper block contains the sum of the block that support it. The one with the largest top value wins. For example, if Peter gets dice values {2, 3, 5} and Mary gets {4, 3, 5}, they lled their pyramids as shown below and Mary wins that round. In that sample round both players score and odd value (13 and 15). 01. What is the probability of getting an odd score? 02. What is the probability of getting 15