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HirePro Pseudocode Quiz 1

Question 1

Time: 00:00:00

What will be the output of the following program?

#include
using namespace std;
int main()
{
int y=30;
while (y > 10)
{
y = y - 4;
}
cout<<y;

return 0;
}

Compiler error

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PrepInsta Explanation
User Explanation

Once you attempt the question then PrepInsta explanation will be displayed.

As 20 is greater than 10 while loop will start and it will continue till value of x becomes 8 and then 8 will be printed.

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Question 2

Time: 00:00:00

What will be the output of the following code
#include
using namespace std;
int main()
{
int num = 20;
if(num > 5)
{
cout<< num -6;
}
else{
cout<<3*(num + 1);
}

return 0;
}

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PrepInsta Explanation
User Explanation

Once you attempt the question then PrepInsta explanation will be displayed.

As n is greater than 5 therefore if statement will be called and n-6 will be printed i.e. 20-6=14.

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Question 3

Time: 00:00:00

What will be the output of the following code?

#include
using namespace std;
int main()
{
int n = 50;
if(n == 4)
{
cout<< n-6;
}
else{
cout<<3*(n+1);
}

return 0;
}

128

153

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PrepInsta Explanation
User Explanation

Once you attempt the question then PrepInsta explanation will be displayed.

As n is not equal to 4 therefore else statement will be called and 22 will be printed.

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Question 4

Time: 00:00:00

What will be the output of the following code.
#include
using namespace std;
int main()
{
int x = 201, y=1001;
if(x > 100)
{
cout<< y-x;
}
else{
cout<<3*(x+1);
}

return 0;
}

204

345

1001

1000

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PrepInsta Explanation
User Explanation

Once you attempt the question then PrepInsta explanation will be displayed.

Since n is greater than 100 therefore if statement will be called and y-n will be printed

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Question 5

Time: 00:00:00

What will be the output of the following code
#include
using namespace std;
int main()
{
int a=230, b= 130;
a=a+1;
b=b-1;
a=a/b;
b=b/a;
cout<<a<<" "<<b;
}

5 78

64 1

1 345

1 129

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PrepInsta Explanation
User Explanation

Once you attempt the question then PrepInsta explanation will be displayed.

a= 230+1 => 231
b = 130-1 =>129
a = 231/129 => 1
k = 129/1 => 129
1, 129

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Question 6

Time: 00:00:00

What will be the output of the following code?
#include
using namespace std;
int main()
{
int p =1,q=2,r=3;
*( ( p+1==1) ? &q : &p)= p? q : r;
printf("%d, %d, %d \n", p , q, r );
return 0;
}

1 2 3

2 2 3

0 2 2

None of the above

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PrepInsta Explanation
User Explanation

Once you attempt the question then PrepInsta explanation will be displayed.

To solve this code, you need to have a good understanding of ternary operators.
(1 + 2 == 3) // True
So, LHS becomes *(&q) // value at address of q.
Now, p? q : r => 1?2:3 So, RHS leaves 3
On comparing, *(&b) = 2 or b =2
So, p=2, q=2, r=3

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Question 7

Time: 00:00:00

What will be the output of the following code?
#include
using namespace std;
int main()
{
int a = 678, b=40;
float c;
c = a / b;
cout<<c;
return 0;
}

16.4

1.64

164

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PrepInsta Explanation
User Explanation

Once you attempt the question then PrepInsta explanation will be displayed.

Due to float operation answer will be 56.0000 therefore option a is most suitable.

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Question 8

Time: 00:00:00

What will be the output of the following code?
#include
int main()
{
int x = 2;
(x & 1) ? printf(“true”) : printf(“false”);
return 0;
}

true

false

Error

zero

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PrepInsta Explanation
User Explanation

Once you attempt the question then PrepInsta explanation will be displayed.

Above code is easy if you know the working of ternary operators. 2 & 1 is 0, so “false” is the answer.

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Question 9

Time: 00:00:00

What will be the output of the following code
#include
using namespace std;
int main()
{
int a = 48, b = 6;
printf("a^b = %d", a^b);
return 0;
}

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PrepInsta Explanation
User Explanation

Once you attempt the question then PrepInsta explanation will be displayed.

This code is performing the xor operation between two variables.

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Question 10

Time: 00:00:00

What will be the output of the following code
#include
int main()
{
int a = 48, b = 4;
printf("a|b = %d\n", a|b);
return 0;
}

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How to use PrepInsta Quiz

PrepInsta Explanation
User Explanation

Once you attempt the question then PrepInsta explanation will be displayed.

This Code is performing Logical OR operation between two variables.

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["0","40","60","80","100"]

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