Q: An alloy is made by mixing metal A costing Rs. 2000/kg and metal B costing Rs. 400/kg in the ratio A : B = 3 : 1. What is the cost (in Rs.) of 8 kilograms of this alloy ?
A.
1600
B.
9800
C.
6400
D.
12800
Correct Answer:
Option D -
Explanations:
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