1
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
If the lines 3y + 4x = 1, y = x + 5 and 5y + bx = 3 are concurrent, then what is the value of b?
A
1
B
3
C
6
D
$${1 \over 2}$$
2
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
What is the equation of the straight line which is perpendicular to y = x and passes through (3, 2) ?
A
x $$-$$ y = 5
B
x + y = 5
C
x + y = 1
D
x $$-$$ y = 1
3
NDA 2019 Paper 1
MCQ (Single Correct Answer)
+2.5
-0.83
The straight lines x + y $$-$$ 4 = 0, 3x + y $$-$$ 4 = 0 and x + 3y $$-$$ 4 = 0 form a triangle, which is
A
isosceles
B
right angled
C
equilateral
D
scalene
4
NDA Mathematics 21 April 2024
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language

The number of points represented by the equation $x = 5$ on the $xy$-plane is

A

Zero

B

One

C

Two

D

Infinitely many

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