Abox contains 203 marbles which are either red or blue. there are 29 more blue marbles than red marbles. how many blue marbles are in the box

Answer= 116

***Explanation=

Step 1)
203/29=7 this divides all the marbles into 7 groups of 29

Step 2)
7/2=3.5 We can assume that each of the 7 groups represents one color each either red or blue so we divide 7 by 2 to figure out that if divided evenly each color would have 3.5 groups of 29. But, because we know that the blue marbles need to have 29 more marbles, instead of splitting the last group between the 2 colors, we give blue the extra group so that there are 3 red groups and 4 blue groups with each group containing 29 marbles

Step 3)
29×4=116 We figured out that there are 4 groups of blue marbles, so we need to convert the groups back to individual marbles so we multiply the number of groups of blue by the marbles im each group which is how to find the answer