# Number Handling

## Quiz by Viji Gripsy PSGRKCW

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- Q1
MCQ: What will be the result of the following PHP code?

$num1 = 10; $num2 = 3; $result = $num1 % $num2; echo $result;

3

0

1

2

30s - Q2
Which PHP function is used to find the absolute value of a number?

abs()

floor()

ceil()

round()

30s - Q3
What will be the output of the following PHP code?

$radius = 4; $area = M_PI * pow($radius, 2); echo round($area, 2);

50.2655

50.26

50

50.27

30s - Q4
Which PHP function is used to generate a random integer between a specified range (inclusive)?

mt_rand()

random_int()

rand()

random_bytes()

30s - Q5
What will be the value of $result after executing the following PHP code?

555

5

-5

55

30s - Q6
How can you calculate the factorial of a number 'n' in PHP?

factorial($n);

factorialOf($n);

Factorial cannot be calculated in PHP. (You need to define a custom function to calculate factorial.)

factorial_calc($n);

30s - Q7
Which operator is used for exponentiation in PHP?

**

//

##

^

30s - Q8
What will be the output of the following PHP code?

$numbers = [5, 10, 15, 20, 25]; $average = array_sum($numbers) / count($numbers); echo round($average, 2);

16

14

11

15

30s - Q9
What will be the result of the following PHP code?

$a = 5; $b = 2; $result = $a + $b * 2; echo $result;

9

5

10

7

30s - Q10
The rand() function in PHP returns:

A random float number between 0 and 1.

A random string of characters.

A random integer number between 0 and 100.

A random integer number between 0 and the largest possible integer value on the system.

30s