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GATE ECE 2020 | GA Question: 5
A superadditive function $f(\cdot)$ satisfies the following property $f\left ( x_{1} +x_{2}\right )\geq f\left ( x_{1} \right ) + f\left ( x_{2} \right )$ Which of the following functions is a superadditive function for $x > 1$? $e^{x}$ $\sqrt{x}$ $1/x$ $e^{-x}$
answered
in
Numerical Ability
Apr 10, 2021
659
views
gate2020-ec
numerical-ability
functions
1
vote
2
GATE ECE 2020 | GA Question: 10
The following figure shows the data of students enrolled in $5$ years $(2014\;\text{to}\; 2018)$ 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 _______. $8 : 23$ $23 : 8$ $23 : 31$ $31 : 23$
answered
in
Numerical Ability
Mar 31, 2021
911
views
gate2020-ec
numerical-ability
data-interpretation
bar-graph
2
votes
3
GATE ECE 2021 | GA Question: 10
Corners are cut from an equilateral triangle to produce a regular convex hexagon as shown in the figure above. The ratio of the area of the regular convex hexagon to the area of the original equilateral triangle is $2:3$ $3:4$ $4:5$ $5:6$
answered
in
Numerical Ability
Mar 22, 2021
264
views
gateec-2021
numerical-ability
geometry
triangles
area
1
vote
4
GATE ECE 2021 | GA Question: 9
The number of minutes spent by two students, $X$ and $Y$, exercising 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 $4$ $5$ $6$ $7$
answered
in
Numerical Ability
Mar 22, 2021
294
views
gateec-2021
numerical-ability
data-interpretation
bar-graph
1
vote
5
GATE ECE 2021 | GA Question: 6
Given below are two statements and two conclusions. $\text{Statement 1}$: All purple are green. $\text{Statement 2}$: All black are green. $\text{Conclusion I}$: Some black are purple. $\text{Conclusion II}$: No black is purple. Based on the above ... correct Either conclusion $\text{I}$ or $\text{II}$ is correct Both conclusion $\text{I}$ and $\text{II}$ are correct
answered
in
Analytical Aptitude
Mar 22, 2021
552
views
gateec-2021
analytical-aptitude
logical-reasoning
statements-follow
2
votes
6
GATE ECE 2021 | GA Question: 8
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 cubic units, is ____________ $\frac{\pi }{3}$ $\frac{2\pi }{3}$ $\frac{3\pi }{2}$ $3\pi$
answered
in
Numerical Ability
Mar 22, 2021
1.1k
views
gateec-2021
numerical-ability
mensuration
cones
2
votes
7
GATE ECE 2021 | GA Question: 3
The least number of squares that must be added so that the line $P-Q$ becomes the line of symmetry is ____________ $4$ $3$ $6$ $7$
answered
in
Spatial Aptitude
Mar 22, 2021
237
views
gateec-2021
spatial-aptitude
patterns-in-two-dimensions
2
votes
8
GATE ECE 2021 | GA Question: 1
The current population of a city is $11,02,500$ . If it has been increasing at the rate of $5\%$ per annum, what was its population $2$ years ago? $9,92,500$ $9,95,006$ $10,00,000$ $12,51,506$
answered
in
Numerical Ability
Mar 22, 2021
210
views
gateec-2021
numerical-ability
simple-compound-interest
3
votes
9
GATE ECE 2021 | GA Question: 2
$p$ and $q$ are positive integers and $\dfrac{p}{q}+\dfrac{q}{p}=3,$ then, $\dfrac{p^{2}}{q^{2}}+\dfrac{q^{2}}{p^{2}}=$ $3$ $7$ $9$ $11$
answered
in
Numerical Ability
Mar 22, 2021
202
views
gateec-2021
numerical-ability
algebra
1
vote
10
GATE ECE 2013 | Question: 19
The minimum eigenvalue of the following matrix is $\begin{bmatrix} 3& 5& 2\\5 &12 &7 \\2 &7 & 5\end{bmatrix}$ $0$ $1$ $2$ $3$
answered
in
Linear Algebra
Nov 26, 2019
441
views
gate2013-ec
linear-algebra
matrices
eigen-values
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