1
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
A ship sets off on a voyage with three engines, labelled $A, B$, and $C$, which work independently. The ship can complete the voyage only if at least two of these engines keep working. The probability that engine $A$ breaks down is $1 / 4$, that engine $B$ breaks down is $1 / 4$, and that engine $C$ breaks down is $1 / 2$. What is the probability that the ship can complete the voyage?
A
3/4
B
$1 / 2$
C
$1 / 32$
D
$1 / 4$
2
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
Consider the differential equation $\cos (y) \frac{d y}{d x}+\frac{1}{x} \sin (y)=x, \quad(x>0)$; given that, $y=\frac{\pi}{2}$ at $x=\sqrt{3}$. Which one of the following is the value of $y$ at $x=\sqrt{\frac{3}{2}}$ ?
A
$\frac{\pi}{6}$
B
$\frac{\pi}{3}$
C
$\frac{\pi}{2}$
D
$\frac{\pi}{4}$
3
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1

In the given figure, the angles $\angle B A Q=\angle C P Q=\angle C B Q=\frac{\pi}{2}$; and the lengths $Q A=3$ units, $A B=$ 4 units, and $B C=1$ unit. What is the length of $P Q$ ?

IAT (IISER) 2024 Mathematics - Properties of Triangles Question 1 English
A
2 unit
B
2.2 unit
C
$\sqrt{2}$ unit
D
$3-\sqrt{2}$ unit
4
IAT (IISER) 2024
MCQ (Single Correct Answer)
+4
-1
On a circular track, two cyclists, Abhijit and Vani, start moving in opposite directions from a point. Abhijit moves with a constant speed. Vani starts with a constant acceleration from rest. They meet again on the track with the same speed. Which of the following is correct?
A
Abhijit travelled the same distance travelled by Vani.
B
Abhijit travelled half the distance travelled by Vani.
C
Abhijit travelled double the distance travelled by Vani.
D
Abhijit travelled $4 / 3$ of the distance travelled by Vani.
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