IBPS RRB Officer Scale 1 Model Paper 13
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Directions (Qs. 41-45) : In each of these questions, two equations (I) and (II) are given. You have to solve both the equations and give answer-
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Question : 42 of 80
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An alloy contains tin and copper in the ratio 3:4 and 10kg pure copper is melted and mixed with it. If the resultant alloy contains 38 kgof copper, what is the weight of the original alloy?
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