Coordination CompoundHard

Question

If the line 2x + y = k passes through the pointwhich divides the line segment joining thepoints (1, 1) and (2, 4) in the ratio 3 : 2, thenk equals :

Options

A.
B.
C.5
D.6

Solution

Let P be the point dividing (1, 1) and (2, 4) inthe ratio 3 : 2.

   


Put x and y in 2x + y = k

⇒ k = 6

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