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Recent questions tagged numerical-ability

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1 answer
Five persons $\text{P, Q, R, S}$ and $\text{T}$ are to be seated in a row, all facing the same direction, but not necessarily in the same order. $\text{P}$ and $\text{T}$ cannot be seated at either end of the row. $\text{P}$ should not be seated adjacent ... is to be seated at the second position from the left end of the row. The number of distinct seating arrangements possible is: $2$ $3$ $4$ $5$
asked Mar 1 in Numerical Ability jothee 4.9k points
1 vote
1 answer
A digital watch $\text{X}$ beeps every $30$ seconds while watch $\text{Y}$ beeps every $32$ seconds. They beeped together at $\text{10 AM}$. The immediate next time that they will beep together is ____ $\text{10.08 AM}$ $\text{10.42 AM}$ $\text{11.00 AM}$ $\text{10.00 PM}$
asked Mar 1 in Numerical Ability jothee 4.9k points
1 vote
1 answer
A box contains $15$ blue balls and $45$ black balls. If $2$ balls are selected randomly, without replacement, the probability of an outcome in which the first selected is a blue ball and the second selected is a black ball, is _____ $\frac{3}{16}$ $\frac{45}{236}$ $\frac{1}{4}$ $\frac{3}{4}$
asked Mar 1 in Numerical Ability jothee 4.9k points
1 vote
1 answer
The ratio of the area of the inscribed circle to the area of the circumscribed circle of an equilateral triangle is ___________ $\frac{1}{8}$ $\frac{1}{6}$ $\frac{1}{4}$ $\frac{1}{2}$
asked Mar 1 in Numerical Ability jothee 4.9k points
1 vote
1 answer
In the above figure, $\textsf{O}$ is the center of the circle and, $\textsf{M}$ and $\textsf{N}$ lie on the circle. The area of the right triangle $\textsf{MON}$ is $50\;\text{cm}^{2}$. What is the area of the circle in $\text{cm}^{2}?$ $2\pi$ $50\pi$ $75\pi$ $100\pi$
asked Feb 22 in Numerical Ability gatecse 1.6k points
1 vote
1 answer
The number of hens, ducks and goats in farm $P$ are $65,91$ and $169,$ respectively. The total number of hens, ducks and goats in a nearby farm $Q$ is $416.$ The ratio of hens : ducks : goats in farm $Q$ is $5:14:13.$ All the hens, ducks and goats are sent from farm $Q$ to farm $P.$ The new ratio of hens : ducks : goats in farm $P$ is ________ $5:7:13$ $5:14:13$ $10:21:26$ $21:10:26$
asked Feb 22 in Numerical Ability gatecse 1.6k points
1 vote
1 answer
$\begin{array}{|c|c|} \hline \textbf{Company} & \textbf{Ratio} \\\hline C1 & 3:2 \\\hline C2 & 1:4 \\\hline C3 & 5:3 \\\hline C4 & 2:3 \\\hline C5 & 9:1 \\\hline C6 & 3:4 \\\hline\end{array}$ The distribution of employees at the rank ... $\textsf{C2}$ and $\textsf{C5}$ together is ________. $225$ $600$ $1900$ $2500$
asked Feb 22 in Numerical Ability gatecse 1.6k points
1 vote
1 answer
Five persons $\text{P, Q, R, S and T}$ are sitting in a row not necessarily in the same order. $Q$ and $R$ are separated by one person, and $S$ should not be seated adjacent to $Q.$ The number of distinct seating arrangements possible is: $4$ $8$ $10$ $16$
asked Feb 22 in Numerical Ability gatecse 1.6k points
1 vote
1 answer
There are five levels $\{P, Q, R, S, T\}$ in a linear supply chain before a product reaches customers, as shown in the figure. At each of the five levels, the price of the product is increased by $25 \%$. If the product is produced at level $P$ at the cost of Rs. $120$ per unit, what is the price paid (in rupees) by the customers? $187.50$ $234.38$ $292.96$ $366.21$
asked Sep 18, 2020 in Numerical Ability jothee 4.9k points
1 vote
1 answer
IT was estimated that $52$ men can complete a strip in a newly constructed highway connecting cities $P$ and $Q$ in $10$ days, Due to an emergency, $12$ men were sent to another project. How many number of days, more than the original estimate, will be required to complete the strip? $3$ days $5$ days $10$ days $13$ days
asked Sep 18, 2020 in Numerical Ability jothee 4.9k points
1 vote
1 answer
An engineer measures THREE quantities, $X, Y$ and $Z$ in an experiment. She finds that they follow a relationship that is represented in the figure below$: ($the product of $X$ and $Y$ linearly varies with $Z)$ Then, which of the following statements is FALSE? For fixed $Z$; $X$ is ... to $Y$ For fixed $Y$; $X$ is proportional to $Z$ For fixed $X$; $Z$ is proportional to $Y$ $XY/Z$ is constant
asked Sep 18, 2020 in Numerical Ability jothee 4.9k points
1 vote
1 answer
The two pie-charts given below show the data of total students and only girls registered in different streams in a university. If the total number of students registered in the university is $5000$, and the total number of the registered girls is $1500$; then, the ratio of boys enrolled in Arts to the girls enrolled in Management is ___________ $2:1$ $9:22$ $11:9$ $22:9$
asked Sep 18, 2020 in Numerical Ability jothee 4.9k points
1 vote
1 answer
Define $[x]$ as the greatest integer less than or equal to $x$, for each $x\in \left (- \infty, \infty \right ).$ If $y = [x]$, then area under $y$ for $x\in \left [ 1,4 \right ]$ is _______. $1$ $3$ $4$ $6$
asked Feb 19, 2020 in Numerical Ability jothee 4.9k points
1 vote
1 answer
The sum of the first $n$ terms in the sequence $8,\:88,\:888,\:8888,\dots$ is ________. $\dfrac{81}{80}\left ( 10^{n}-1 \right )+\dfrac{9}{8}n \\$ $\dfrac{81}{80}\left ( 10^{n}-1 \right )-\dfrac{9}{8}n \\$ $\dfrac{80}{81}\left ( 10^{n}-1 \right )+\dfrac{8}{9}n \\$ $\dfrac{80}{81}\left ( 10^{n}-1 \right )-\dfrac{8}{9}n$
asked Feb 19, 2020 in Numerical Ability jothee 4.9k points
1 vote
1 answer
Select the graph that schematically represents BOTH $y=x^{m}\:\text{and}\:y=x^{1/m}$ properly in the interval $0\leq x \leq 1$, for integer values of $m,$ where $m > 1.$
asked Feb 19, 2020 in Numerical Ability jothee 4.9k points
1 vote
1 answer
The bar graph shows the data of the students who appeared and passed in an examination for four schools $P, Q, R$, and $S$. The average of success rates $\text{(in percentage)}$ of these four schools is _______. $58.5\%$ $58.8\%$ $59.0\%$ $59.3\%$
asked Feb 19, 2020 in Numerical Ability jothee 4.9k points
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The product of three integers $X$, $Y$ and $Z$ is $192$. $Z$ is equal to $4$ and $P$ is equal to the average of $X$ and $Y$. What is the minimum possible value of $P$? $6$ $7$ $8$ $9.5$
asked Feb 9, 2019 in Numerical Ability Arjun 24.6k points
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Fiscal deficit was $4 \%$ of the GDP in $2015$ and that increased to $5 \%$ in $2016$. If the GDP increased by $10 \%$ from $2015$ to $2016$, the percentage increase in the actual fiscal deficit is ____ $37.50$ $35.70$ $25.00$ $10.00$
asked Feb 9, 2019 in Numerical Ability Arjun 24.6k points
1 vote
1 answer
Two pipes $P$ and $Q$ can fill a tank in $6$ hours and $9$ hours respectively, while a third pipe $R$ can empty the tank in $12$ hours. Initially, $P$ and $R$ are open for $4$ hours, Then $P$ is closed and $Q$ is opened. After $6$ more hours $R$ is closed. The total time taken to fill the tank (in hours) is ____ $13.50$ $14.50$ $15.50$ $16.50$
asked Feb 9, 2019 in Numerical Ability Arjun 24.6k points
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Mola is a digital platform for taxis in a city. It offers three types of rides - Pool, Mini and Prime.The table below presents the number of rides for the past four months. The platform earns one US dollar per ride. What is the percentage share of the revenue contributed by Prime to the total revenues ... $16.24$ $23.97$ $25.86$ $38.74$
asked Feb 9, 2019 in Numerical Ability Arjun 24.6k points
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A worker noticed that the hour hand on the factory clock had moved by $225$ degrees during her stay at the factory. For how long did she stay in the factory? $3.75$ hours $4$ hours and $15$ mins $8.5$ hours $7.5$ hours
asked Feb 9, 2019 in Numerical Ability Arjun 24.6k points
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The sum and product of two integers are $26$ and $165$ respectively. The difference between these two integers is ______ $2$ $3$ $4$ $6$
asked Feb 9, 2019 in Numerical Ability Arjun 24.6k points
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A person divided an amount of Rs. $100,000$ into two parts and invested in two different schemes. In one he got $10 \%$ profit and in the other he got $12 \%$. If the profit percentages are interchanged with these investments he would have got Rs. $120$ less. Find the ratio between his investments in the two schemes. $9:16$ $11:14$ $37:63$ $47:53$
asked Feb 9, 2019 in Numerical Ability Arjun 24.6k points
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A firm hires employees at five different skill levels P, Q, R, S, T. The shares of employment at these skills levels of total employment in $2010$ is given in the pie chart as shown. There were a total of $600$ employees in $2010$ and the total employment increased by $15\%$ ... $40 \%$ from $2010$ to $2016$, how many employees were there at skill level T in $2016$? $30$ $35$ $60$ $72$
asked Feb 9, 2019 in Numerical Ability Arjun 24.6k points
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Which of the following assertions are $\textbf{CORRECT}$? Adding $7$ to each entry in a list adds $7$ to the mean of the list. Adding $7$ to each entry in a list adds $7$ to the standard deviation of the list. Doubling each entry in a list doubles the mean of the list. Doubling each entry in a list leaves the standard deviation of the list unchanged. $P,Q$ $Q,R$ $P,R$ $R,S$
asked Mar 20, 2018 in Numerical Ability Andrijana3306 1.5k points
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An automobile plant contracted to buy shock absorbers from two suppliers $X$ and $Y.$ $X$ supplies $60\%$ and $Y$ supplies $40\%$ of the shock absorbers. All shock absorbers are subjected to a quality test. The ones that pass the quality test are considered reliable. Of $X'$s shock ... randomly chosen shock absorber, which is found to be reliable, is made by $Y$ is $0.288$ $0.334$ $0.667$ $0.720$
asked Mar 20, 2018 in Numerical Ability Andrijana3306 1.5k points
1 vote
1 answer
A political party orders an arch for the entrance to the ground in which the annual convention is being held. The profile of the arch follows the equation $y=2x-0.1x^2$ where $y$ is the height of the arch in meters. The maximum possible height of the arch is $8$ meters $10$ meters $12$ meters $14$ meters
asked Mar 20, 2018 in Numerical Ability Andrijana3306 1.5k points
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The cost function for a product in a firm is given by $5q^2$ where $q$ is the amount of production. The film can sell the product at a market price of INR $50$ per unit. The number of units to be produced by the firm such that the profit is maximized is $5$ $10$ $15$ $25$
asked Mar 20, 2018 in Numerical Ability Andrijana3306 1.5k points
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A contract is to be completed in $52$ days and $125$ identical robots were employed, each operational for $7$ hours a day. After $39$ days, five-seventh of the work was completed. How many additional robots would be required to complete the work on time, if each robot is now operational for $8$ hours a day? $50$ $89$ $146$ $175$
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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A wire would enclose an area of $1936 \: m^2$, if it is bent to a square. The wire is cut into two pieces. The longer piece is thrice as long as the shorter piece. The long and the short pieces are bent into a square and a circle, respectively. Which of the following choices is closest to the sum of the areas enclosed by the two pieces in square meters? $1096$ $1111$ $1243$ $2486$
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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The value of the expression $\dfrac{1}{1+ \log_u \: vw} + \dfrac{1}{1+ \log_v \: wu} + \dfrac{1}{1+\log_w uv}$ is _______ $-1$ $0$ $1$ $3$
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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An unbiased coin is tossed six times in a row and four different such trials are conducted. One trial implies six tosses of the coin. If H stands for head ans T stands for tail, the following are the observations from the four trials. HTHTHT TTHHHT HTTHHT HHHT_ _ Which statement describing ... correct? Two T will occur. One H and one T will occur. Two H will occur. One H wll be followed by one T.
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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The perimeters of a circle, a square, and an equilateral triangle are equal. Which one of the following statements is true? The circle has the largest area The square has the largest area The equilateral triangle has the largest area All the three shapes have the same area
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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Which of the following functions describe the graph shown in the below figure? $y=\mid \mid x \mid + 1 \mid -2$ $y=\mid \mid x \mid - 1 \mid -1$ $y=\mid \mid x \mid + 1 \mid -1$ $y=\mid \mid x - 1 \mid -1\mid$
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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Seven machines take $7$ minutes to make $7$ identical toys. At the same rate, how many minutes would it take for $100$ machine to make $100$ toys? $1$ $7$ $100$ $700$
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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From the time the front of a train enters a platform, it takes $25$ seconds for the back of the train to leave the platform, while traveling at a constant speed of $54$ km/h. At the same speed, it takes $14$ seconds to pass a man running at $9$ km/h in the same direction as ... and that of the platform in meters, respectively? $210$ and $140$ $162.5$ and $187.5$ $245$ and $130$ $175$ and $200$
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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A rectangle becomes a square when its length and breadth are reduced by $10$ m and $5$ m, respectively. During this process, the rectangle loses $650 m^2$ of area. What is the area of the original rectangle in square meters? $1125$ $2250$ $2924$ $4500$
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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Given that $a$ and $b$ are integers and $a+a^2 b^3$ is odd, which of the following statements is correct? $a$ and $b$ are both odd $a$ and $b$ are both even $a$ is even and $b$ is odd $a$ is odd and $b$ is even
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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For integers, $a$, $b$ and $c$, what would be the minimum and maximum values respectively of $a+b+c$ if $\log \mid a \mid + \log \mid b \mid + \log \mid c \mid =0$? $\text{-3 and 3}$ $\text{-1 and 1}$ $\text{-1 and 3}$ $\text{1 and 3}$
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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A number consists of two digits. The sum of the digits is $9$. If $45$ is subtracted from the number, its digits are interchanged. What is the number? $63$ $72$ $81$ $90$
asked Feb 17, 2018 in Numerical Ability Arjun 24.6k points
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