The mean and median of Al’s n = 3 observations both equal 10. The mean and media

The mean and median of Al’s n = 3 observations both equal 10. The mean and median of Bev’s n = 5 observations both equal 18. (a) Carol combines Al’s and Bev’s data into one collection of n = 8 observations. Can the mean of Carol’s data be calculated from the information given? If you think not, just say that. If you think it can, then calculate Carol’s mean.