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There are two types of jar. In the 1st jar the ratio of copper and aluminium is 1:2 and in the 2nd Jar is 1: 4. In what ratio these two jar should be mix to make 3rd jar In which the ratio of copper & aluminium become 1:3?
3:5
5:3
2:5
5:2
copper in 1st = 1/3 Copper in 2nd = 1/5 copper in 3rd = ¼ 1/3 1/5 . 1/4 1/20 1/12 3 : 5
Hence, option 1 is the correct answer.
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