1.

Two alloys made up of copper and tin. The ratio of copper and tin in the first alloy is 1:3 in the second alloy it is 2:5 in what ratio the two alloys should be mixed to obtain a new alloy in which the ratio of tin and copper be 8:3?

Answer»

`3:5`
`4:7`
`3:8`
`5:11`

ANSWER :B


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