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81 / 123
func()
{
int x=1;
if(x=1)
x=1000;
else
x=10;
return x;
}
What is the return value?
A1
B10
C1000
DError
Answer: Option C
Explanation:Here is no explanation for this answer
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82 / 123
#include<stdio.h>
int main()
{
int i=20,j,k=0;
for(j=1;j >i;j++)
{
k+=j<10?4:3;
}
printf("%d", k);
}A5
B0
C10
D6
EError
Answer: Option B
Explanation:Here is no explanation for this answer
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83 / 123
Find the output for the following C program
#include
int i = 10;
int main()
{
int i =20,n;
for(n=0;n<=i;)
{
int i=10;
i++;
}
printf("%d k", i);
}
A10
B20
CStack overflow
D0
Answer: Option C
Explanation:Here is no explanation for this answer
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84 / 123
Type duplicates of a row in a table customer with non uniform key field customer number you can see
ADelete from costomer where customer number exists( select distinct customer number from customer having count )
BDelete customer a where customer number in b rowid
CDelete customer a where custermor number in( select customer number from customer a, customer b )
DNone of the above
Answer: Option A
Explanation:Here is no explanation for this answer
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85 / 123
There is an employer table with key fields as employer number data in every n'th row are needed for a simple following queries will get required results.
ASelect A employee number from employee A , where exists from employee B where A employee no. = B employee having (count(*) mod n)=0
Bselect employee number from employe A, employe B where A employe number=B employ number group by employee number having(count(*) mod n=0 )
CBoth (a) & (b)
DNone of the above
Answer: Option B
Explanation:Here is no explanation for this answer
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86 / 123
The UNIX shell
Adoes not come with the rest of the system
Bforms the interface between the user and the kernal
Cdoes not give any scope for programming
Ddeos not allow calling one program from with in another
Eall of the above
Answer: Option B
Explanation:Here is no explanation for this answer
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87 / 123
The redirection operators > and >>
Ado the same function
Bdiffer : > overwrites, while >> appends
Cdiffer : > is used for input while >> is used for output
Ddiffer : > write to any file while >> write only to standard output
ENone of these
Answer: Option B
Explanation:Here is no explanation for this answer
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88 / 123
Four concentric circles are given .The radius of 1st circle is x.next is 2x,then 3x and 4x. Given that area between 2nd and 1st is A and 4th and 3rd circles being B. Find ratio of A to B
A3:7
B7:3
C3:5
DNone of these
Answer: Option A
Explanation:Area of first circle = pi*(x)^2 = pi*x^2
Area of second circle = pi*(2x)^2 = 4*pi*x^2
Area of third circle = pi*(3x)^2 = 9*pi*x^2
Area of fourth circle = pi*(4x)^2 = 16*pi*x^2
Area b/w 1st and 2nd circles = 3*pi*x^2
Area b/w 3rd and 4th circles = 7*pi*x^2
So, Ratio = 3:7
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89 / 123
A triangle ABC is given, a line DE is parallel to base side and that cuts the triangle. The ratio of area of triangle to the area of trapezium.
Given DE/BC = 3/5.
A9/16
B5/2
C3/16
DNone of these
Answer: Option A
Explanation:The line DE divides the triangle ABC into 2 parts - triangle ADE and trapezium DBCE.The question is to find the ratio of area(ADE) to area(DBCE).
Now triangle ADE is similar to triangle ABC.
=> DE/BC = AD/AB = AE/AC ....(1)
Drawing a perpendicular from A to BC meeting BC at G and meeting DE at F.
Now AF and AG are the heights of the triangles ADE and ABC resp.
tri(ADF)~tri(ABG) => AD/AB = AF/AG ....(2)
Area of a triangle = 1/2(base*height).
Area of tri(ADE) = 1/2(DE*AF)
Area of tri(ABC) = 1/2(BC*AG)
Area of trapezium(DBCE) = area(ABC)-area(ADE) = 1/2(BC*AG-DE*AF)
Ratio - area(ADE)/area(DBCE) = (DE*AF)/(BC*AG-DE*AF) = 1/[(BC*AG-DE*AF)/(DE*AF)]
(rearranging) = 1/[(BC/DE)*(AG/AF)-1]
Using (1) and (2),(BC/DE)*(AG/AF) = (BC/DE)^2
(using given DE/BC=3/5) => BC/DE=5/3 => (BC/DE)^2 = 25/9
The required ratio = 1/(25/9-1) =1/(16/9) = 9/16
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90 / 123
A company contracts to paint 3 houses. Mr.Brown can paint a house in 6 days while Mr.Black would take 8 days and Mr.Blue 12 days. After 8 days Mr.Brown goes on vacation and Mr. Black begins to work for a period of 6 days. How many days will it take Mr.Blue to complete the contract?
A7
B8
C11
D12
Answer: Option C
Explanation:Here is no explanation for this answer
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