How many sperms will be produced from 10 primary spermatocytes and how many eggs will be produced from 10 primary oocytes?
For every primary spermatocyte, there are 4 sperms produced. Hence, from 10 primary spermatocytes, 40 sperms will be produced.
However, from a primary oocyte, there will be divisions and finally 3 polar bodies along with one egg will result. Hence, 10 primary oocytes will form 10 eggs.