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Card in a pack are black and red in a ratio black:red=2:5 what fraction of the cards are red a)7/10 b)2/5 c)5/7 d)2/7 please help me to why is 5/7?
asked
Mar 10, 2020
Mathematics
middle-school
1
answer
2
votes
38.4k
views
At night, if you leave a brightly lit place, you should
asked
Oct 8, 2019
Arts
high-school
2
answers
5
votes
210k
views
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