Mathematics-Basic

Q.7: The point on x-axis which divides the line segment joining (2, 3) and (6, – 9) in the ratio 1 : 3 is
(A) (4, – 3)
(B) (6, 0)
(C) (3, 0)
(D) (0, 3)

Answer: (C) (3, 0)

Let solid is (x, 0)

x=(mx2+nx1) / (m+n)

x= ( 1(6) + 3(2) )/ (1+3)

x= 12/4

x=3

so point is (3,0)


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