The system of equations 2x – ay = 4; 5x – ky = 5 is inconsistent. If k and a are natural numbers, then the minimum possible value of (a + k) is equal to?
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The minimum value of a + k is 7
Step-by-step explanation:
The given linear equations
we know that if two simultaneous linear equations and is inconsistent
Then
Therefore, here
Now,
Since a and k are natural numbers
Therefore, a + k must be a natural number
i.e. k must be multiple of 5
i.e. k = 5, 10, 15, 20, ....
Minimum value of a + k will be for k = 5
Thus, the minimum value of a + k
Hope this answer is helpful.
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