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Straight Lines and Pair of Straight Lines question

2025 · 22 Jan · Shift 1 · Q30

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Straight Lines and Pair of Straight Lines
2025 · 22 Jan · Shift 1 · Q30

Straight Lines and Pair of Straight Lines question

2025 · 22 Jan · Shift 1 · Q30

JEE MainMathematicsStraight Lines and Pair of Straight LinesMCQ+4 / −1

Let the triangle PQR be the image of the triangle with vertices

(1,3),(3,1)

and

(2,4)

in the line

x+2 y=2

. If the centroid of

\triangle \mathrm{PQR}

is the point

(\alpha, \beta)

, then

15(\alpha-\beta)

is equal to :

A
21
B
19
C
22
D
24

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