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Determine the condition of which of pair...

Determine the condition of which of pair of linear equations `x-4y=10 and 3x+ky=20` has a unique solution.

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The correct Answer is:
`k ne -12`
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KUMAR PRAKASHAN-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES -Test Your Skills
  1. Solve the following pair of linear equations graphically: 3x+4y=24, ...

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  2. Find the value of k for which the pair of linear equations 2x-3y=12 an...

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  3. Determine the condition of which of pair of linear equations x-4y=10 a...

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  4. Solve the following pairs of linear equations by substitution method: ...

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  5. Solve the following pairs of linear equations by substitution method: ...

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  6. Solve the following pairs of linear equations by substitution method: ...

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  7. Solve the following pairs of linear equations by substitution method: ...

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  8. Parthiv tells his son Ariv "Five years ago my age was seven times your...

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  9. Ahaam and Arya have certain sums with them. If Arya gives Rs. 50 to Ah...

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  10. The sum of digits of a two digit number is 10. The number obtaiend by ...

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  11. The total cost of 5 pens and 2 books is Rs. 150, while the total cost ...

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  12. There are 50 students in a class. Each boy in the class contributed Rs...

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  13. Solve by the elimination method: 2x+y=10, 3x+2y=17

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  14. Solve by the elimination method: 3x+2y=11, x-4y=13

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  15. Solve by the elimination method: 3x+4y=12, 6x+8y=20

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  16. Solve by the elimination method: x+5y=11, 2x-3y=9

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  17. Solve by the elimination method: 2x+3y=2, 5x+4y=3(5)/(6)

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  18. Solve by the elimination method: 3x-5y=3, 2x+3y=-17

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  19. The sum of a two digit number and the number obtained by interchanging...

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  20. Two numbers are in the ratio 3:4. If 5 is added to each number, their ...

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