Jacob had twice as many marbles as Jerry. Kenny had 3 times as many marbles as Jacob. They had 846 marbles altogether. How many more marbles did Kenny have than Jerry?

Answer 1

My answer is 470

9 units = 846

1 unit = 846 divide 9 = 94

5 * 94 = 470

Answer 2

jac = 2 jer
k = 3 jac = 3*2 = 6 jer
2 jer + 6 jer + 1 jer = 9 jer = 846
so
Jerry = jer = 94
jacob = 2 jer = 188
Kenny = 6 jer = 564
564 - 94 = 470