The value of k for which the system of linear equations x + 2y = 3, 5x + ky + 7 = 0 is inconsistent is... | MCQ 1m | Maths | SuperPadhai

Linear Equations > Question

MCQ1 markYear: 2020EasyCBSE Class 10

linear-equationsconsistency

Question

The value of

k

for which the system of linear equations

x + 2 y = 3

,

5 x + k y + 7 = 0

is inconsistent is

Solution

1

For inconsistency:

\frac{1}{5} = \frac{2}{k} \neq = \frac{3}{- 7}

.

\Rightarrow k = 10

+1 mark

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