1
JEE Main 2019 (Online) 10th January Morning Slot
+4
-1
If 5, 5r, 5r2 are the lengths of the sides of a triangle, then r cannot be equal to -
A
$${7 \over 4}$$
B
$${5 \over 4}$$
C
$${3 \over 4}$$
D
$${3 \over 2}$$
2
JEE Main 2019 (Online) 10th January Morning Slot
+4
-1
A point P moves on the line 2x – 3y + 4 = 0. If Q(1, 4) and R (3, – 2) are fixed points, then the locus of the centroid of $$\Delta$$PQR is a line -
A
parallel to y-axis
B
with slope $${2 \over 3}$$
C
parallel to x-axis
D
with slope $${3 \over 2}$$
3
JEE Main 2019 (Online) 10th January Morning Slot
+4
-1
If the line 3x + 4y – 24 = 0 intersects the x-axis at the point A and the y-axis at the point B, then the incentre of the triangle OAB, where O is the origin, is -
A
(3, 4)
B
(2, 2)
C
(4, 4)
D
(4, 3)
4
JEE Main 2019 (Online) 9th January Evening Slot
+4
-1
Let the equations of two sides of a triangle be 3x $$-$$ 2y + 6 = 0 and 4x + 5y $$-$$ 20 = 0. If the orthocentre of this triangle is at (1, 1), then the equation of its third side is :
A
122y $$-$$ 26x $$-$$ 1675 = 0
B
122y + 26x + 1675 = 0
C
26x + 61y + 1675 = 0
D
26x $$-$$ 122y $$-$$ 1675 = 0
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