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A bag contains red and blue marbles. In a representative sample of 30 marbles, there are 20 red marbles. If the bag has 180 marbles,

A bag contains red and blue marbles. In a representative sample of 30 marbles, there are 20 red marbles. If the bag has 180 marbles, estimate the number of red marbles and blue marbles in the bag.

How many red marbles in the bag ?

how many blue marbles in the bag.

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