Discussion :: Exam Questions Paper
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The system of linear equations 4x + 2y = 1 , 2x + y = 6 has
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A.
a unique solution
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B.
no solution
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C.
an infinite number of solutions
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D.
exactly two distinct solutions
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Answer : Option B
Explanation :
4x + 1y = 7 → (1)
2x + y = 6 → (2)
(1) can be written as 2x + y = 3.5 → (3)
Now LHS of equations (2) and (3) are same but RHS is different which is not possible. Hence no solution.
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