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Question

For the pair of linear equations 5x+7y=12 and 10x+14y=20 the solution set is____

A
Infinite set
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B
Empty set
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C
Unique solution
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D
None of the above
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Solution

The correct option is B Empty set

asratioofcoefficientofxandyaresame(510)=(12)and(714)=(12)but(1210)=(35)so(510)=(714)(35)hencethesetwoequationhavenosolution,henceemptyset


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