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Mathematics

Answered

There are only black pens and green pens in a box.
The ratio of the number of black pens in the box to the number of green pens in the box is 2:5
What fraction of the pens are black?

Answer :

ARJUNAALAM2006GO ARJUNAALAM2006GO

the amount of pens all together is 7, the amount of black pens is 2, therefore answer is2/7 black pens

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