Q. 75.0( 3 Votes )

# If (2*k*-1,*k*) is a solution of the equation 10*x*-9*y*=12, then *k*=

A. 1

B. 2

C. 3

D. 4

Answer :

Given, (2*k*-1,*k*) is a solution of the equation 10*x*-9*y*=12

⇒ 20x – 10 – 9k = 12

⇒ 11k = 22

⇒ k = 2

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