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Question

The coordinate of a point P on the line segment joining A(1,2) and B(6,7) such that AP=2AB5, is

A
(3,4)
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B
(1,2)
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C
(1,2)
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D
None of these
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Solution

The correct option is B (3,4)

Here, point P is on AB such that AP=2AB5APAB=25.

Using componendo and dividendo, we have,

AP(ABAP)=2(52)

APPB=23

This means that P divides AB in the ratio 2:3.

Therefore, coordinates of P will be,

P(2×6+3×12+3,2×7+3×22+3)

P(3,4)

Hence, the required point is P(3,4).


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