Question 313616
Let x= total number of marbles


Now, the number of marbles given to Danny will be
{{{(1/4)(1/3)(1/2)x=4}}}
{{{(1/24)x =4}}}


Multiply both sides by 24.
x=96 marbles.


OR


Danny = 4 = 1/4 of Carl
Carl = 16 = 1/3 of Bev
Bev = 48 = 1/2 of Al
Al = 96


Dr. Robert J. Rapalje, Retired