Final answer:
To find out how many GB memory the flash drive holds in total, you need to set up a proportion using the given information about the flash drive being 3/5 full and 12 GB of data on it. Solving the proportion will give you the total memory of the flash drive.
Step-by-step explanation:
To find out how many GB memory the flash drive holds in total, we need to first determine the fraction of the flash drive that is full. In this case, the flash drive is 3/5 full, which means that 2/5 of the memory is empty.
To calculate the total memory of the flash drive, we can set up a proportion. Since 2/5 of the memory is empty, it is also equal to 12 GB, which is the given amount of data on the flash drive. We can set up the proportion as follows: (2/5) / (12/x) = (2/5) / 12.
By cross-multiplying, we get: 2 * x = 5 * 12. Solving for x, we find that x = 30. Therefore, the flash drive holds a total of 30 GB of memory.