cusstomer requested a cake for 50 people. I plan on using single layer 10" round, double 8" layer, double 6" layer (party size pieces) Thanks for input.

round? my estimated servings add up to 46.
square? I estimated 47 servings. If you double the 10" then you would have estimated (r) 60 (s)62 servings.

thanks. that is what i came up with as well. didn't want to have to do another 10" is I could get around it. Doesn't look that way though.