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A bag contains 120 marbles. Some are red and the rest are black. There are 19 red marbles for every black marble.

How many red marbles are in a bag

1 Answer

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Answer:

There are 114 red marbles

Explanation:

The ratio of red to black marbles is 19:1

19+1+20

20 units+120

1 unit= 120/20=6

19 units=120-6=114

There for you have 114 red marbles.

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User Fookatchu
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