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Recent questions tagged numerical-computation

3 votes
2 answers
3
GATE Chemical 2020 | GA Question: 9
For a matrix $M=[m_{ij}]; \: i,j=1,2,3,4$, the diagonal elements are all zero and $m_{ij}=-m_{ji}$. The minimum number of elements required to fully specify the matrix is ________ $0$ $6$ $12$ $16$
For a matrix $M=[m_{ij}]; \: i,j=1,2,3,4$, the diagonal elements are all zero and $m_{ij}=-m_{ji}$. The minimum number of elements required to fully specify the matrix is...
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1 votes
1 answer
4
GATE Overflow Test Series | Mixed Subjects | Test 1 | Question: 28
In what ratio must milk $A$ at $Rs.\,21.50$ per litre be mixed with milk $B$ at $Rs.\,32.30$ per litre, so that the mixture be worth $Rs. 23$ per litre? $93:15$ $15:93$ $3:5$ $9:5$
In what ratio must milk $A$ at $Rs.\,21.50$ per litre be mixed with milk $B$ at $Rs.\,32.30$ per litre, so that the mixture be worth $Rs. 23$ per litre?$93:15$$15:93$$3:5...
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6 votes
3 answers
10
GATE2019 ME-2: GA-4
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 $P$? $6$ $7$ $8$ $9.5$
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 $P$?$6$...
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4 votes
3 answers
11
GATE2019 ME-1: GA-4
The sum and product of two integers are $26$ and $165$ respectively. The difference between these two integers is ______ $2$ $3$ $4$ $6$
The sum and product of two integers are $26$ and $165$ respectively. The difference between these two integers is ______$2$$3$$4$$6$
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1 votes
1 answer
14
GATE2018 ME-1: GA-5
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
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?63728190
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5 votes
2 answers
16
GATE2017 ME-1: GA-7
What is the sum of the missing digits in the subtraction problem below? $\begin{array}{cccccc} &5&\_&\_&\_&\_&\\ -&4&8&\_&8&9\\ \rlap{\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_}\\ &&1&1&1&1 \end{array}$ $8$ $10$ $11$ Cannot be determined.
What is the sum of the missing digits in the subtraction problem below?$\begin{array}{cccccc}&5&\_&\_&\_&\_&\\-&4&8&\_&8&9\\\rlap{\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_}\\&&1&1...
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29 votes
6 answers
17
GATE CSE 2017 Set 2 | Question: GA-8
$X$ is a $30$ digit number starting with the digit $4$ followed by the digit $7$. Then the number $X^3$ will have $90$ digits $91$ digits $92$ digits $93$ digits
$X$ is a $30$ digit number starting with the digit $4$ followed by the digit $7$. Then the number $X^3$ will have$90$ digits$91$ digits$92$ digits$93$ digits
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11 votes
2 answers
20
GATE2016 Aptitude Set 8: GA-10
The numeral in the units position of $211^{870}+146^{127} \times 3^{424}$ is ________.
The numeral in the units position of $211^{870}+146^{127} \times 3^{424}$ is ________.
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4 votes
6 answers
21
GATE2016 CE-2: GA-5
The sum of the digits of a two digit number is $12$. If the new number formed by reversing the digits is greater than the original number by $54$, find the original number. $39$ $57$ $66$ $93$
The sum of the digits of a two digit number is $12$. If the new number formed by reversing the digits is greater than the original number by $54$, find the original numbe...
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3 votes
2 answers
23
CMI2010-A-07
For integer values of $n$, the expression $\frac{n(5n + 1)(10n + 1)}{6}$ Is always divisible by $5$. Is always divisible by $3$. Is always an integer. None of the above
For integer values of $n$, the expression $\frac{n(5n + 1)(10n + 1)}{6}$Is always divisible by $5$.Is always divisible by $3$.Is always an integer.None of the above
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3 votes
2 answers
24
GATE2014 EC-2: GA-8
The sum of eight consecutive odd numbers is $656$. The average of four consecutive even numbers is $87$. What is the sum of the smallest odd number and second largest even number?
The sum of eight consecutive odd numbers is $656$. The average of four consecutive even numbers is $87$. What is the sum of the smallest odd number and second largest eve...
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6 votes
2 answers
25
GATE2014 EC-4: GA-4
Let $f(x, y) = x^{n}y^{m} = P$. If $x$ is doubled and $y$ is halved, the new value of $f$ is $2^{n-m}P$ $2^{m-n}P$ $2(n - m)P$ $2(m - n)P$
Let $f(x, y) = x^{n}y^{m} = P$. If $x$ is doubled and $y$ is halved, the new value of $f$ is$2^{n-m}P$$2^{m-n}P$$2(n - m)P$$2(m - n)P$
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11 votes
2 answers
26
GATE2013 CE: GA-1
A number is as much greater than $75$ as it is smaller than $117$. The number is: $91$ $93$ $89$ $96$
A number is as much greater than $75$ as it is smaller than $117$. The number is:$91$$93$$89$$96$
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7 votes
3 answers
27
GATE2012 CY: GA-10
Raju has $14$ currency notes in his pocket consisting of only Rs. $20$ notes and Rs. $10$ notes. The total money value of the notes is Rs. $230$. The number of Rs. $10$ notes that Raju has is $5$ $6$ $9$ $10$
Raju has $14$ currency notes in his pocket consisting of only Rs. $20$ notes and Rs. $10$ notes. The total money value of the notes is Rs. $230$. The number of Rs. $10$ n...
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8 votes
2 answers
28
GATE2012 AR: GA-6
A value of $x$ that satisfies the equation $\log x + \log (x – 7) = \log (x + 11) + \log 2$ is $1$ $2$ $7$ $11$
A value of $x$ that satisfies the equation $\log x + \log (x – 7) = \log (x + 11) + \log 2$ is$1$ $2$ $7$ $11$
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