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If the pair of equations 2x+y=7 and 6x-p...

If the pair of equations 2x+y=7 and 6x-py-21=0 has infinite number of solutions then p=………..

A

3

B

4

C

5

D

none

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VGS PUBLICATION-BRILLIANT-PAIR OF LINEAR EQUATIONS IN TWO VARIABLES-EXERCISE
  1. A line parallel to the line x+2y+1=0 is…………

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  2. The pair of equations x=3,y=2 graphically represent lines which……..

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  3. If the pair of equations 2x+y=7 and 6x-py-21=0 has infinite number of ...

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  4. The value of k for which the system of equations kx+3y=1, 12x+ky=2 has...

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  5. The line 3x+y=7 intersects X-axis at…………

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  6. For what value of k, 2x+3y=4 and (k+2)x+6y=3k+2 will have infinitely m...

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  7. (x+1)/(2)+(y+1)/(3)=9,(x-1)/(3)+(y+1)/(2)=8 then x=………

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  8. (x+1)/(2)+(y-1)/(3)=9,(x-1)/(3)+(y+1)/(2)=8 In the above problem y= ……...

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  9. If the equations (2m-1)x+3y-5=0, 3x+(n-1)y-2=0 has Inflnlte number of ...

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  10. If the equations (2m-1)x+3y-5=0, 3x+(n-1)y-2=0 has Inflnlte number of ...

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  11. A fraction becomes (9)/(11) if 2 is added to both numerator and denomi...

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  12. The ration of incomes of two persons is 11: 7 and the ration of their ...

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  13. The ration of incomes of two persons is 11: 7 and the ration of their ...

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  14. The age of a father 8 years ago was 5 times that of his son 8 years. H...

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  15. The age of a father 8 years ago was 5 times that of his son 8 years. H...

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  16. The two lines 2x-y=1,x+2y=13 will intersect at ………..

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  17. Identity parallel lines

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  18. Solution to 2x+3y=12,2y-1=x is……………

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  19. The lines x-y=1, 2x+y=8 intersect at …………

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  20. If (5)/(x-1)+(1)/(y-2)=2,(6)/(x-1)+(-3)/(y-2)=1 then x=……….

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