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B
No solution
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C
More than two solutions
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D
Infinitely many solutions
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Solution
The correct option is A Unique solution Given equations are: x+2y=5 3x+12y=10 From the equations we have: ⇒a1=1,b1=2 ⇒a2=3,b2=12 a1a2=13 b1b2=212=16 ⇒a1a2≠b1b2 Hence system of equations has a unique solution