Question

Here is the math problem.

"There are 2 blue marbles, 3 red marbles and 2 yellow marbles in a paper bag. What fraction of the marbles are red or yellow? If the number of marbles of each color in the bag was doubled, how would your answer change?"

Answer 1

2+3+2=7
Red has 3
Yellow has 2
2+3=5
5/7 is the fraction of red or yellow marbles in the bag.
Doubling would not change the answer