1
GATE ECE 2021
MCQ (Single Correct Answer)
+2
-0.66
Consider a square sheet of side 1 unit. In the first step, it is cut along the main diagonal to get two triangles. In the next step, one of the cut triangles is revolved about its short edge to form a solid cone. The volume of the resulting cone, in
A
$${{2\pi } \over 3}$$
B
$$3\pi $$
C
$${\pi \over 3}$$
D
$${{3\pi } \over 2}$$
2
GATE ECE 2021
MCQ (Single Correct Answer)
+2
-0.66
GATE ECE 2021 General Aptitude - Numerical Ability Question 35 English

The number of minutes spent by two students, X and Y, excercising every day in a given week are shown in the bar chart above.

The number of days in the given week in which one of the students spent a minimum of 10% more than the other student, on a given day, is
A
7
B
5
C
4
D
6
3
GATE ECE 2020
MCQ (Single Correct Answer)
+2
-0.67

$a, b, c$ are real numbers. The quadratic equation $a x^2-b x+c=0$ has equal roots, which is $\beta$, then

A

$\beta^3=\frac{b c}{\left(2 a^2\right)}$

B

$\beta^2=a c$

C

$\beta=\frac{b}{a}$

D

$b^2 \neq 4 a c$

4
GATE ECE 2020
MCQ (Single Correct Answer)
+2
-0.67

The following figure shows the data of students enrolled in 5 years (2014 to 2018) for two schools P and Q. During this period, the ratio of the average number of the students enrolled in school P to the average of the difference of the number of students enrolled in schools $P$ and $Q$ is

GATE ECE 2020 General Aptitude - Numerical Ability Question 4 English
A

$31: 23$

B

$23: 8$

C

$23: 31$

D

$8: 23$

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