
Could it be solved by the branching method that are taught in school instead of model?
Thanks
Could it be solved by the branching method that are taught in school instead of model?
Thanks
A model isn’t needed but the branching method isn’t the best method here since the boys and girls are distinct. Simply identifying that both the boys and girls have 5 units at the start, with a total of 10 units, is enough to solve.
Thanks! Very clear answer