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If (2k - 1,k) is a solution of the equation 10x - 9y = 12, then k =  A. 1  B. 2  C. 3  D. 4

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

A. 1 

B. 2 

C. 3 

D. 4

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1 Answer

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by (27.0k points)
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Best answer

Option : (B) 

Given, 

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

⇒ 20x – 10 – 9k = 12 

⇒ 11k = 22 

⇒ k = 2

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