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An alloy of 17 Kg . 500 gm contains copp...

An alloy of 17 Kg . 500 gm contains copper and zinc in the ratio of `5:2`. If `1.250` kg .zinc be mixed with it , then the ratio of copper and zinc is

A

a) `2:1`

B

b) `2:3`

C

c) `3:2`

D

d) `1:2`

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