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Question

In a particular type of 15 kg of alloy the ratio of iron to carbon is 2:3. Now 3kg of iron is added to the mixture.
Choose the correct options below:


A

The ratio of iron to carbon will be 1:2.

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B

The ratio of iron to carbon will be 1:1.

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C

The amount of iron initially in the mixture is 6kg.

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D

The amount of iron intitially in the mixture is 9kg.

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Solution

The correct options are
B

The ratio of iron to carbon will be 1:1.


C

The amount of iron initially in the mixture is 6kg.


Initially, amount of the iron in 15kg of alloy = 25×15=6kg
Amount of carbon in 15kg of alloy=(15-6)=9kg
After adding 3kg of iron, amount of iron=(6+3)kg=9kg
ironcarbon=99=1:1
Hence, (B) and (C) are correct options.


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