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Proportion
ains 12 marbles. The marbles are either red or blue. If th
1: 2, how many of each colour are there in the bag?

Answer :

1+2=3, 12 divided by 3=4 4x1=4, so there is 4 red marbles. 4x2=8 so there is 8 blue marbles. We can check this is true by adding 8+4 which =12.

blue=8
red=4

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