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An alloy is made by mixing metal Acostin...

An alloy is made by mixing metal Acosting Rs. 2000/kg and metal B costing Rs. 400/kg in the ra tio A: B-3:1. What is the cost (in Rs.) of 8 kilograms of this alloy?

A

1600

B

9800

C

6400

D

12800

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