Which one of the following pair of linear equations is/are inconsistent?
(A) 2x – 2y = 10, 3x – 3y = 15
(B) 3x – y = 7, 6x – 2y = 18
(C) x – y =15, 5x – 5y = 12
(D) 7x – 3y = 3, 14x – 6y = 8
Choose the correct answer from the options given below:
Which one of the following pair of linear equations is/are inconsistent?
(A) 2x – 2y = 10, 3x – 3y = 15
(B) 3x – y = 7, 6x – 2y = 18
(C) x – y =15, 5x – 5y = 12
(D) 7x – 3y = 3, 14x – 6y = 8
Choose the correct answer from the options given below:
Solution
✅ Correct Option: 4
A pair is inconsistent when .
(A) , so all three ratios are equal: consistent with infinite solutions.
(B) : inconsistent.
(C) : inconsistent.
(D) : inconsistent.
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