hi need help math

Question 28 (3 points) B C Asha asks Tristan to choose a number between 1 and 20 and then say one fact about the number. Tristan says that the number he chose is a multiple of 3. Determine the probability that the number is also a multiple of 2. If using a Venn diagram to solve, you can use the labels in the diagram above to help explain your work. Otherwise, detailed explanations must be given for full marks