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Recent questions and answers in Numerical Ability

0 votes
1 answer 4 views
The area of the rectangle increases by 7 sq. units when its breadth alone is increased by 1 unit. Its area increases by 5 sq. unit when its length alone is increased by 1 unit. Find the perimeter of the original rectangle. 17 units 18 units 24 units 36 units
answered 2 days ago in Numerical Ability asqwer 633 points 4 views
0 votes
1 answer 21 views
A bag contains 1 rupee, 50 paise and 25 paise coins. The value of 1 rupee, 50 paise and 25 paise coins are in the ratio of 5 : 2 : 3 respectively. If total number of coins is 420, then what will be the total value of all coins? Rs. 160 Rs. 180 Rs. 220 Rs. 200
answered Jul 21 in Numerical Ability asqwer 633 points 21 views
1 vote
1 answer 36 views
The greatest number that divides 215,167 and 135 so as to leave the same remainder in each case What is the approach to solve such questions #gate2022
answered Mar 1 in Numerical Ability zxy123 3.6k points 36 views
1 vote
1 answer 908 views
If $\theta$ is the angle, in degrees, between the longest diagonal of the cube and any one of the edges of the cube, then, $\cos \theta =$ $\frac{1}{2} \\$ $\frac{1}{\sqrt{3}} \\$ $\frac{1}{\sqrt{2}} \\$ $\frac{\sqrt{3}}{2}$
asked Feb 18 in Numerical Ability Arjun 1.5k points 908 views
6 votes
3 answers 557 views
​​​​​​If $\left( x – \dfrac{1}{2} \right)^2 – \left( x- \dfrac{3}{2} \right) ^2 = x+2$, then the value of $x$ is: $2$ $4$ $6$ $8$
asked Feb 18 in Numerical Ability Arjun 1.5k points 557 views
2 votes
2 answers 966 views
The number of students in three classes is in the ratio $3:13:6$. If $18$ students are added to each class, the ratio changes to $15:35:21$. The total number of students in all the three classes in the beginning was: $22$ $66$ $88$ $110$
asked Feb 18 in Numerical Ability Arjun 1.5k points 966 views
2 votes
2 answers 671 views
The number of units of a product sold in three different years and the respective net profits are presented in the figure above. The cost/unit in Year $3$ was $₹\;1$, which was half the cost/unit in Year $2$. The cost/unit in Year $3$ was one-third of the cost/unit in Year $1$. ... The ratio of the selling price in Year $2$ to the selling price in Year $3$ is _________. $4:3$ $1:1$ $3:4$ $1:2$
asked Feb 18 in Numerical Ability Arjun 1.5k points 671 views
3 votes
1 answer 1.3K views
​​​​​​The ratio of boys to girls in a class is $7$ to $3$. Among the options below, an acceptable value for the total number of students in the class is: $21$ $37$ $50$ $73$
asked Feb 18 in Numerical Ability Arjun 1.5k points 1.3K views
3 votes
1 answer 516 views
We have $2$ rectangular sheets of paper, $\text{M}$ and $\text{N}$, of dimensions $\text{6 cm $\times$ 1 cm}$ each. Sheet $\text{M}$ is rolled to form an open cylinder by bringing the short edges of the sheet together. Sheet $\text{N}$ is cut into equal square patches and assembled ... volume of the cylinder to that of the cube is _________. $\frac{\pi}{2}$ $\frac{3}{\pi}$ $\frac{9}{\pi}$ $3\pi$
asked Feb 18 in Numerical Ability Arjun 1.5k points 516 views
2 votes
1 answer 414 views
$\begin{array}{|c|c|c|c|} \hline \textbf{Items} & \textbf{Cost} & \textbf{Profit %} & \textbf{Marked Price} \\ & (₹) & & (₹) \\\hline P &5,400 &---&5,860\\\hline Q&---&25&10,000\\\hline\end{array}$ Details of prices of two items $P$ and $Q$ are presented in ... $Q$, as a percentage of its marked price, is _______ $25$ $12.5$ $10$ $5$
asked Feb 18 in Numerical Ability Arjun 1.5k points 414 views
2 votes
1 answer 1.2K views
There are five bags each containing identical sets of ten distinct chocolates. One chocolate is picked from each bag. The probability that at least two chocolates are identical is __________ $0.3024$ $0.4235$ $0.6976$ $0.8125$
asked Feb 18 in Numerical Ability Arjun 1.5k points 1.2K views
0 votes
1 answer 24 views
The GDP in Rupees grew at 7% during 2012-13.For international comparison, the GDP is compared in US Dollars after conversion based on the market exchange rate. During the period 2012-13 the ₹ 50aUSD to ₹ 60USD. India's GDP in USD during the period 2012-13 a- increased by 5% b- decreased by 13% c- decreased by 20% d- decreased by 11%
answered Feb 14 in Numerical Ability zxy123 3.6k points 24 views
1 vote
1 answer 19 views
How many odd numbers of four digits having distinct digits can be formed with the digits 0,1,2,3,5,7 ?
answered Jan 14 in Numerical Ability kalin 155 points 19 views
0 votes
1 answer 27 views
A team of 30 men is supposed to do a work in 37 days . After 25 days , 5 more men were employed and the work was finished 1 day earlier . How many days would it have been delayed if 5 more men were not employed?
answered Jan 12 in Numerical Ability zxy123 3.6k points 27 views
0 votes
0 answers 37 views
Finding the sum of the following series leads to two different answers with two different methods. The series is listed as: 1+2/3 + 4/9 + 6/27 + . (infinity) Method 1: Directly apply the formula--> Sum=a/(1-r), with a=1 and r=2/3. Here, we get the answer as sum=3. ... 9 + ...(infinity) . ..(2) Subtracting (1) from (2) and solving further, we will get S=2.5 Kindly tell which method is correct.
asked Jan 10 in Numerical Ability sarkar 5 points 37 views
0 votes
2 answers 36 views
This Question is from GATE 2013 General aptitude Paper, If |-2x+9|=3 then the possible value of |-X|-X^2 would be: a)30 (b)-30 (c)-42 (d) 42
answered Oct 9, 2020 in Numerical Ability Nikhil_dhama 225 points 36 views
0 votes
1 answer 48 views
Which of the following number has odd number of divisors? 8762 9993 7568 1147 I tried calculating the numbers but it is very hard Can somehow virtual calculator be used? Is the problem in gate syllabus?
answered Aug 23, 2020 in Numerical Ability PalashT 1k points 48 views
0 votes
1 answer 31 views
If $\mid 4X-7 \mid =5$ then the values of $2\mid X\mid -\mid -X\mid$ is: $\quad 2,\left(\dfrac{1}{3}\right)$ $\left(\dfrac{1}{2}\right),3$ $\left(\dfrac{3}{2}\right),9$ $\left(\dfrac{2}{3}\right),9$
answered Aug 20, 2020 in Numerical Ability akshita_jain 23 points 31 views
0 votes
1 answer 59 views
Round-trip tickets to a tourist destination are eligible for a discount of $10\%$ on the total fare. In addition, groups of $4$ or more get a discount of $5\%$ on the total fare. If the one way single person fare is $Rs$ $100$, a group of $5$ tourists purchasing round-trip tickets will be charged $Rs$ __________
answered Aug 20, 2020 in Numerical Ability akshita_jain 23 points 59 views
0 votes
1 answer 74 views
1 vote
2 answers 1.4K views
Look at this series : 25, 25, 37, 37, __, 51 , What number should fill the blank? (A) 51 (B) 39 (C) 23 (D) 25
answered Aug 16, 2020 in Numerical Ability Arkaprava 867 points 1.4K views
0 votes
1 answer 54 views
Hare in the other. The hare starts after the tortoise has covered 1/5 of its distance and that too leisurely3. A hare and a tortoise have a race along a circle of 100 yards diameter. The tortoise goes in one direction and the. The hare and tortoise meet when the hare has covered only ... the distance. By what factor should the hare increase its speed so as to tie the race? A. 37.8 B. 8 C. 40 D. 5
answered Aug 16, 2020 in Numerical Ability Arkaprava 867 points 54 views
1 vote
1 answer 71 views
In an NGO study on the effect of sleep on call center workers, following were the observations made on a certain number of volunteers in the study. 75% of the volunteers receive fewer than 6 hours of sleep and report feeling tired during their shifts. At ... of the volunteers receive fewer than 6 hours of sleep, what percent of the volunteers report no feelings of tiredness during their shifts ?
answered Aug 16, 2020 in Numerical Ability Arkaprava 867 points 71 views
0 votes
1 answer 30 views
The minimum number of cables required to connect $8$ computers to $4$ printers to ensure that any $4$ computers can directly access $4$ different printers is __________ Ans given $20,$ I havenot got, how it could be?
answered Aug 16, 2020 in Numerical Ability Arkaprava 867 points 30 views
0 votes
2 answers 83 views
$\gcd(36,k)=6$, then what is the k? I know the only naive method,can anyone explain any other method.
answered Aug 16, 2020 in Numerical Ability Arkaprava 867 points 83 views
1 vote
1 answer 67 views
A fast train leaves Chennai to Bengaluru and at the same point in time a slow train leaves from Bengaluru to Chennai. The fast train moves at a speed of $60\: km /hr$ and the slow train moves at half of the speed of the fast train. Both these ... fast train is further from Chennai The slow train is further from Chennai Both the trains are equidistant from Chennai None of the options is correct
answered Aug 15, 2020 in Numerical Ability Arkaprava 867 points 67 views
0 votes
1 answer 11.9K views
A clock is set right at 7 AM,and the clock loses 15 min in 24 hrs.what is the correct time when it shows 4PM.after 2 days?
answered Aug 14, 2020 in Numerical Ability Akanksha Agrawal 309 points 11.9K views
0 votes
1 answer 178 views
0 votes
1 answer 67 views
A,B,C invests their shares are in the ratio 1/2:1/3:1/4. A withdraws half of his capital after 10 months. A profit of 378 is divided among them what is B's share?? While solving this problem how to convert fractional ratios into normal ratio??
answered Aug 11, 2020 in Numerical Ability Arkaprava 867 points 67 views
0 votes
1 answer 48 views
Consider a Circle with 100 points numbered 1,2,3,4, ..,99,100. Now their is a tortoise at point numbered 1 and a hare at point numbered 2 and both can only move in clockwise direction only on numbered points. Tortoise can move one point at time for eg :- from 1 ... move like this until they meet at some point. Now find the point at which they meet or if they cannot meet at some point tell why??
answered Jul 3, 2020 in Numerical Ability Shaik Masthan 1.6k points 48 views
0 votes
0 answers 24 views
A $200 \times 200$ $cm^2$ area is to be scanned by a $20 \times 20$ $cm^2$ flashlight. The search starts from the top left corner, and scans from left to right. After each reading, the flashlight is moved to the right by $4$ $cm$. After reaching right end, the ... $1 \times 1$ $cm^2$ squares are scanned more than once, compared to the optimal solution where we scan $200 \times 200$ $cm^2$ squares?
asked May 7, 2020 in Numerical Ability toxicdesire 555 points 24 views
0 votes
1 answer 28 views
0 votes
1 answer 61 views
On a particular day if it is found that a clock is shoing 10 minutes less at 1:00 pm and 5 min more at 6:00 pm on the same day. At what time did the clock show the correct time? 3 hr 20 min 4 hr 20 min 5 hr 40 min 6 hr 40 min
answered Apr 23, 2020 in Numerical Ability Animesh Sinha 25 points 61 views
0 votes
0 answers 16 views
Given digits$ 2, 2, 3, 3, 3, 4, 4, 4, 4$ how many distinct $4$ digit numbers greater than $3000$ can be formed? $50$ $51$ $52$ $54$
asked Apr 18, 2020 in Numerical Ability admin 573 points 16 views
0 votes
0 answers 16 views
In a process, the number of cycles to failure decreases exponentially with an increase in load. At a load of $80$ units, it takes $100$ cycles for failure. When the load is halved, it takes $10000 \ \text{cycles}$ for failure.The load for which the failure will happen in $5000 \ \text{cycles}$ is _____________. $40.00$ $46.02$ $60.01$ $92.02$
asked Apr 18, 2020 in Numerical Ability admin 573 points 16 views
0 votes
0 answers 12 views
$A$ and $B$ are friends. They decide to meet between 1:00 pm and 2:00 pm on a given day. There is a condition that whoever arrives first will not wait for the other for more than $15$ minutes. The probability that they will meet on that day is $1/4$ $1/16$ $7/16$ $9/16$
asked Apr 18, 2020 in Numerical Ability admin 573 points 12 views
0 votes
0 answers 10 views
The probabilities that a student passes in mathematics, physics and chemistry are $m,p$ and $c$ respectively. Of these subjects, the student has $75\%$ chance of passing in at least one, a $50\%$ chance of passing in at least two and a $40\%$ chance of passing in exactly ... Only relation I is true. Only relation II is true. Relations II and III are true. Relations I and III are true.
asked Apr 18, 2020 in Numerical Ability admin 573 points 10 views
0 votes
0 answers 19 views
The number of roots of $e^{x}+0.5x^{2}-2=0$ in the range $[-5,5]$ is $0$ $1$ $2$ $3$
asked Apr 18, 2020 in Numerical Ability admin 573 points 19 views
0 votes
0 answers 14 views
A six sided unbiased die with four green faces and two red faces is rolled seven times. Which of the following combinations is the most likely outcome of the experiment? Three green faces and four red faces. Four green faces and three red faces. Five green faces and two red faces. Six green faces and one red face
asked Apr 18, 2020 in Numerical Ability admin 573 points 14 views
0 votes
0 answers 13 views
Four branches of a company are located at $M$, $N$, $O$ and $P$. $M$ is north of $N$ at a distance of $4 km$; $P$ is south of $O$ at a distance of $2$ $km$; $N$ is southeast of O by $1 km$. What is the distance between $M$ and $P$ in $km$? $5.34$ $6.74$ $28.5$ $45.49$
asked Apr 18, 2020 in Numerical Ability admin 573 points 13 views
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