Question
There were 487 green, blue and red marbles in a bag. Given that there were 124 more green marbles than red marbles and 99 more blue marbles than red marbles, how many red marbles were there in the bag?
4 m

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There were 487 green, blue and red marbles in a bag. Given that there were 124 more green marbles than red marbles and 99 more blue marbles than red marbles, how many red marbles were there in the bag?