Recent questions and answers in Numerical Ability
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Recent questions and answers in Numerical Ability

Recent questions and answers in Numerical Ability
0 votes
0 answers 39 views
DSSSB PGT CS
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
dishendra asked in Numerical Ability Jul 31, 2021
by dishendra
8 points
39 views
0 votes
0 answers 56 views
Numerical Aptitude
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
dishendra asked in Numerical Ability Jul 21, 2021
by dishendra
8 points
56 views
0 votes
0 answers 50 views
Geometric Progression
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 ... ...(infinity) . ..(2) Subtracting (1) from (2) and solving further, we will get S=2.5 Kindly tell which method is correct.
sarkar asked in Numerical Ability Jan 10, 2021
by sarkar
5 points
50 views
0 votes
1 answer 125 views
Set and venn diagram
akshita_jain answered in Numerical Ability Aug 20, 2020
by akshita_jain
23 points
125 views
0 votes
0 answers 33 views
Self Doubt - A $200 \times 200$ $cm^2$ area is to be scanned by a $20 \times 20$ $cm^2$ flashlight.
toxicdesire asked in Numerical Ability May 7, 2020
by toxicdesire
555 points
33 views
0 votes
1 answer 35 views
TOMATO + Polynomials Q286
Sourajit25 answered in Numerical Ability Apr 24, 2020
by Sourajit25
5 points
35 views
0 votes
0 answers 25 views
GATE2010-65 Video Solution
Given digits$ 2, 2, 3, 3, 3, 4, 4, 4, 4$ how many distinct $4$ digit numbers greater than $3000$ can be formed? $50$ $51$ $52$ $54$
admin asked in Numerical Ability Apr 18, 2020
by admin
585 points
25 views
0 votes
0 answers 26 views
GATE2016-1-GA10 Video Solution
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 _____________. $40.00$ $46.02$ $60.01$ $92.02$
admin asked in Numerical Ability Apr 18, 2020
by admin
585 points
26 views
0 votes
0 answers 22 views
GATE2012 CY: GA-7 Video Solution
$A$ 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 $1/4$ $1/16$ $7/16$ $9/16$
admin asked in Numerical Ability Apr 18, 2020
by admin
585 points
22 views
0 votes
0 answers 17 views
GATE2015-1-GA-10 Video Solution
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 $40\%$ ... Only relation I is true. Only relation II is true. Relations II and III are true. Relations I and III are true.
admin asked in Numerical Ability Apr 18, 2020
by admin
585 points
17 views
0 votes
0 answers 29 views
GATE2017-2-GA-9 Video Solution
The number of roots of $e^{x}+0.5x^{2}-2=0$ in the range $[-5,5]$ is $0$ $1$ $2$ $3$
admin asked in Numerical Ability Apr 18, 2020
by admin
585 points
29 views
0 votes
0 answers 25 views
GATE2018-GA-10 Video Solution
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
admin asked in Numerical Ability Apr 18, 2020
by admin
585 points
25 views
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