Recent questions and answers in Numerical Ability

Question

1 vote

2 answers

1

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 $x > 1$? $e^{x}$ $\sqrt{x}$ $1/x$ $e^{-x}$

Lakshman Patel RJIT answered in Numerical Ability Apr 10, 2021

by Lakshman Patel RJIT

3.9k points

686 views

1 vote

2 answers

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 _______. $8 : 23$ $23 : 8$ $23 : 31$ $31 : 23$

Lakshman Patel RJIT answered in Numerical Ability Mar 31, 2021

by Lakshman Patel RJIT

3.9k points

957 views

1 vote

1 answer

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 $2:3$ $3:4$ $4:5$ $5:6$

Lakshman Patel RJIT answered in Numerical Ability Mar 22, 2021

by Lakshman Patel RJIT

3.9k points

273 views

1 vote

1 answer

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 $4$ $5$ $6$ $7$

Lakshman Patel RJIT answered in Numerical Ability Mar 22, 2021

by Lakshman Patel RJIT

3.9k points

305 views

1 vote

1 answer

5

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 ____________ $\frac{\pi }{3}$ $\frac{2\pi }{3}$ $\frac{3\pi }{2}$ $3\pi$

Lakshman Patel RJIT answered in Numerical Ability Mar 22, 2021

by Lakshman Patel RJIT

3.9k points

1.2k views

2 votes

1 answer

6

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? $9,92,500$ $9,95,006$ $10,00,000$ $12,51,506$

Lakshman Patel RJIT answered in Numerical Ability Mar 22, 2021

by Lakshman Patel RJIT

3.9k points

215 views

1 vote

2 answers

7

GATE ECE 2021 | GA Question: 2
$p$ and $q$ are positive integers and $\dfrac{p}{q}+\dfrac{q}{p}=3,$ then, $\dfrac{p^{2}}{q^{2}}+\dfrac{q^{2}}{p^{2}}=$ $3$ $7$ $9$ $11$

Lakshman Patel RJIT answered in Numerical Ability Mar 22, 2021

by Lakshman Patel RJIT

3.9k points

206 views

0 votes

1 answer

8

GATE ECE 2019 | GA Question: 9
Two design consultants, $P$ and $Q,$ started working from $8$ AM for a client. The client budgeted a total of USD $3000$ for the consultants. $P$ stopped working when the hour hand moved by $210$ degrees on the clock. $Q$ stopped working when ... paying the consultants, the client shall have USD _______ remaining in the budget. $000.00$ $166.67$ $300.00$ $433.33$

haralk10 answered in Numerical Ability Aug 12, 2020

by haralk10

960 points

126 views

1 vote

1 answer

9

GATE ECE 2020 | GA Question: 9
$a, b, c$ are real numbers. The quadratic equation $ax^{2}-bx+c=0$ has equal roots, which is $\beta$, then $\beta =b/a$ $\beta^{2} =ac$ $\beta^{3} =bc/\left ( 2a^{2} \right )$ $\beta^{2} \neq 4ac$

haralk10 answered in Numerical Ability Aug 11, 2020

by haralk10

960 points

326 views

1 vote

1 answer

10

GATE ECE 2020 | GA Question: 8
A circle with centre $\text{O}$ is shown in the figure. A rectangle $\text{PQRS}$ of maximum possible area is inscribed in the circle. If the radius of the circle is $a$, then the area of the shaded portion is _______. $\pi a^{2}-a^{2}$ $\pi a^{2}-\sqrt{2}a^{2}$ $\pi a^{2}-2a^{2}$ $\pi a^{2}-3a^{2}$

haralk10 answered in Numerical Ability Aug 11, 2020

by haralk10

960 points

1.6k views

1 vote

1 answer

11

GATE ECE 2020 | GA Question: 7
It is quarter past three in your watch. The angle between the hour hand and the minute hand is ________. $0^{\circ}$ $7.5^{\circ}$ $15^{\circ}$ $22.5^{\circ}$

Madhav answered in Numerical Ability May 10, 2020

by Madhav

1.4k points

260 views

0 votes

1 answer

12

GATE ECE 2017 Set 2 | GA Question: 9
The number of $3$-digit numbers such that the digit $1$ is never to the immediate right of $2$ is $781$ $791$ $881$ $891$

suraj20041995 answered in Numerical Ability Oct 12, 2019

by suraj20041995

190 points

177 views

0 votes

2 answers

13

GATE ECE 2019 | GA Question: 4
Five different books $(P, Q, R, S, T)$ are to be arranged on a shelf. The books $R$ and $S$ are to be arranged first and second, respectively from the right side of the shelf. The number of different orders in which $P, Q$ and $T$ may be arranged is ______. $2$ $6$ $12$ $120$

maha_m answered in Numerical Ability Oct 12, 2019

by maha_m

140 points

129 views

0 votes

1 answer

14

GATE ECE 2019 | GA Question: 3
It would take one machine $4$ hours to complete a production order and another machine $2$ hours to complete the same order. If both machines work simultaneously at their respective constant rates, the time taken to complete the same order is ________ hours. $2/3$ $3/4$ $4/3$ $7/3$

Debdeep1998 answered in Numerical Ability Jul 23, 2019

by Debdeep1998

180 points

104 views

0 votes

1 answer

15

GATE ECE 2017 Set 1 | GA Question: 10
A contour line joins locations having the same height above the mean sea level. The following is a contour plot of a geographical region. Contour lines are shown at $25$ m intervals in this plot. The path from $P$ to $Q$ is best described by Up-Down-Up-Down Down-Up-Down-Up Down-Up-Down Up-Down-Up

Debdeep1998 answered in Numerical Ability Jul 23, 2019

by Debdeep1998

180 points

102 views

0 votes

0 answers

16

GATE ECE 2019 | GA Question: 7
The bar graph in panel (a) shows the proportion of male and female illiterates in $2001$ and $2011.$ The proportions of males and females in $2001$ and $2011$ are given in Panel (b) and (c), respectively. The total population did not change during this period. ... in the total number of literates from $2001$ to $2011$ is ______. $30.43$ $33.43$ $34.43$ $35.43$

Arjun asked in Numerical Ability Feb 12, 2019

by Arjun

4.5k points

181 views

0 votes

0 answers

17

GATE ECE 2016 Set 3 | GA Question: 5
It takes $10$s and $15$s, respectively, for two trains traveling at a different constant speeds to completely pass a telegraph post. The length of the first train is $120$ m and that of the second train is $150$ m. The magnitude of the difference in the speeds of the two trains (in m/s) is _________ $2.0$ $10.0$ $12.0$ $22.0$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

50 views

0 votes

0 answers

18

GATE ECE 2016 Set 3 | GA Question: 6
The velocity $V$ of a vehicle along a straight line is measured in m/s and plotted as shown with respect to time in seconds. At the end of the $7$ seconds, how much will the odometer reading increase by (in m)? $0$ $3$ $4$ $5$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

43 views

0 votes

0 answers

19

GATE ECE 2016 Set 3 | GA Question: 9
Find the area bounded by the lines $3x+2y=14$, $2x-3y=5$ in the first quadrant. $14.95$ $15.25$ $15.70$ $20.35$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

52 views

0 votes

0 answers

20

GATE ECE 2016 Set 3 | GA Question: 10
A straight line is fit to a data set $(\text{ln }x,y).$ This line intercepts the abscissa at $\text{ln } x =0.1$ and has a slope of $-0.02$. What is the value of $y$ at $x=5$ from the fit? $-0.030$ $-0.014$ $0.014$ $0.030$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

51 views

0 votes

0 answers

21

GATE ECE 2016 Set 2 | GA Question: 5
$S$, $M$, $E$ and $F$ are working in the shifts in a team to finish a project. $M$ works with twice the efficiency of others but for half as many days as $E$ worked. $S$ amd $M$ have $6$ hour shifts in a day, whereas $E$ and $F$ have $12$ hours shifts. What is the ratio of contribution of $M$ to contribute of $E$ in the project? $1:1$ $1:2$ $1:4$ $2:1$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

28 views

0 votes

0 answers

22

GATE ECE 2016 Set 2 | GA Question: 6
The Venn diagram shows the preference of the students population for leisure activities. From the data given, the number of students who like to read books or play sports is _____. $44$ $51$ $79$ $108$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

36 views

0 votes

0 answers

23

GATE ECE 2016 Set 2 | GA Question: 8
Two and a quarter hours back, when seen in a mirror, the reflection of a wall clock without umber markings seemed to show $1.30$. What is the actual current time shown by the clock? $8.15$ $11.15$ $12.15$ $12.45$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

38 views

0 votes

0 answers

24

GATE ECE 2016 Set 2 | GA Question: 9
$M$ and $N$ start from the same location. $M$ travels $10$ km east ad then $10$ km North-East. $N$ travels $5$ km South and then $4$ km South-East. What is the shortest distance (in km) between $M$ and $N$ at the end of their travel? $18.60$ $22.50$ $20.61$ $25.00$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

26 views

0 votes

0 answers

25

GATE ECE 2016 Set 2 | GA Question: 10
A wire of length $340$ mm is to be cut into two parts. One of the parts is to be made into a square and the other into a rectangle where sides are in the ratio of $1:2$. What is the length of the square (in mm) such that the combined area of the square and the rectagle is a $\textbf{MINIMUM?}$ $30$ $40$ $120$ $180$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

29 views

0 votes

0 answers

26

GATE ECE 2016 Set 1 | GA Question: 4
In a huge pile of apples and oranges, both ripe and unripe mixed together,$15\%$ are unripe fruits. Of the unripe fruits, $45 \%$ are apples. Of the ripe ones, $66 \%$ are oranges. If the pile contains a total of $5692000$ fruits, how many of them are apples? $2029198$ $2467482$ $2789080$ $3577422$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

24 views

0 votes

0 answers

27

GATE ECE 2016 Set 1 | GA Question: 5
Michael lives $10$ km away from where I live. Ahmed lives $5$ km away and Susan lives $7$ km away from where I live. Arun is farther away than Ahmed but closer than Susan from where I live. From the information provided here, what is one possible distance (in km) at which I live from Arun’s place? $3.00$ $4.99$ $6.02$ $7.01$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

32 views

0 votes

0 answers

28

GATE ECE 2016 Set 1 | GA Question: 6
A person moving through a tuberculosis prone zone has a $50 \%$ probability of becoming infected. However, only $30 \%$ of infected people develop the disease. What percentage of people moving through a tuberculosis prone zone remains infected but does not show symptoms of disease? $15$ $33$ $35$ $37$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

32 views

0 votes

0 answers

29

GATE ECE 2016 Set 1 | GA Question: 9
If $q^{-a} = \frac{1}{r}$ and $r^{-b}=\frac{1}{s}$ and $s^{-c} = \frac{1}{q}$ ,the value of $abc$ is______. $(rqs)^{-1}$ $0$ $1$ $r+q+s$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

29 views

0 votes

0 answers

30

GATE ECE 2016 Set 1 | GA Question: 10
P, Q, R and S are working on a project. Q can finish the task in $25$ days, working alone for $12$ hours a day. R can finish the task in $50$ days, working alone for $12$ hours per day. Q worked $12$ hours a day but took sick leave in the beginning ... ratio of work done by Q and R after $7$ days from the start of the project? $10:11$ $11: 10$ $20:21$ $21:20$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

146 views

0 votes

0 answers

31

GATE ECE 2015 Set 3 | GA Question: 5
If $x>y>1,$ which of the following must be true? $\text{ln } x > \text{ln }y$ $e^{x}>e^{y}$ $y^{x}>x^{y}$ $\cos x> \cos y$ $(i)$ and $(ii)$ $(i)$ and $(iii)$ $(iii)$ and $(iv)$ $(ii)$ and $(iv)$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

36 views

0 votes

0 answers

32

GATE ECE 2015 Set 3 | GA Question: 8
From a circular sheet of paper of radius $30$ cm, a sector of $10\%$ area is removed. If the remaining part is used to make a conical surface, then the ratio of the radius and height of the cone is ________.

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

38 views

0 votes

0 answers

33

GATE ECE 2015 Set 3 | GA Question: 9
$\log \tan1^{\circ}+ \log \tan2^{\circ}+ \dots + \log \tan89^{\circ}$ is $1$ $\frac{1}{\sqrt{2}}$ $0$ $-1$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

35 views

0 votes

0 answers

34

GATE ECE 2015 Set 2 | GA Question: 4
An electric bulb has onboard instruments that report the total electricity consumed since the start of the trip as well as the total distance covered. During a single day of operation, the bus travels on stretches $M, N, O,$ and $P,$ in that order. ... $km$ is minimum is M N O P

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

49 views

0 votes

0 answers

35

GATE ECE 2015 Set 2 | GA Question: 5
Ram and Ramesh appeared in an interview for two vacancies in the same department. The probability of Ram's selection is $1/6$ and that of Ramesh is $1/8$. What is the probability that only one of them will be selected? $47/48$ $1/4$ $13/48$ $35/48$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

40 views

0 votes

0 answers

36

GATE ECE 2015 Set 2 | GA Question: 8
A tiger is $50$ leaps of its own behind a tree. The tiger takes $5$ leaps per minute to the deer's $4$. If the tiger and the deer cover $8$ meter and $5$ meter per leap respectively, what distance in meters will the tiger have to run before it catches the deer?

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

51 views

0 votes

0 answers

37

GATE ECE 2015 Set 2 | GA Question: 9
if $a^2+b^2+c^2=1$ then $ab+bc+ac$ lies in the interval $[1,2/3]$ $[-1/2,1]$ $[-1,1/2]$ $[2,-4]$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

34 views

0 votes

0 answers

38

GATE ECE 2015 Set 1 | GA Question: 5
If $\log_{x}{(\frac{5}{7})}=\frac{-1}{3},$ then the value of $x$ is $343/125$ $125/343$ $-25/49$ $-49/25$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

49 views

0 votes

0 answers

39

GATE ECE 2015 Set 1 | GA Question: 8
Fill in the missing value

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

44 views

0 votes

0 answers

40

GATE ECE 2015 Set 1 | GA Question: 9
A cube of side $3$ units is formed using a set of smaller cubes of side $1$ unit. Find the proportion of the number of faces of the smaller cubes visible to those which are NOT visible. $1:4$ $1:3$ $1:2$ $2:3$

Milicevic3306 asked in Numerical Ability Mar 28, 2018

by Milicevic3306

15.8k points

39 views

To see more, click for all the questions in this category.

Ask

Recent questions and answers in Numerical Ability