Question

1. Which of the following can be treated as a Boolean expression?

A. an int expression

B. any of these

C. the result of a comparison(such as <or>)

D. a float expression

2. Assuming the variable x contains an integer value what will the result of the following statement be: if x<0 or x>=0.

A. True

B. False

C. Sometimes true and sometimes false

D. A "math domain" error will occur

Answer 1

1. Which of the following can be treated as a Boolean expression?

A. an int expression

B. any of these

C. the result of a comparison(such as <or>)

D. a float expression

ANSWER: B

Explanation:

Boolean data type is return either True or False. It's a logical statement. Boolean expression can compare any type of data but the condition is that the expression have the same basic data type. you can perform expression like a<=b , a.=b , a!=b , less than, greater than etc...

Let's talk of your quetion:

Here option A an int expression lets take an example

Suppose we have two int value 5 and 6 we want to check is equal or not. so we can write like this

5==6

it's return FALSE because 5 is not equal to 6. So option A is correct.

option c

Suppose we have two int value 10 and 16 we want to check is less than or not. so we can write like this

10<16

it's return TRUE because 10 is less than to 16. So option c is also correct.

option D

Suppose we have two float value 0.1 and 1.6 we want to check is equal or not. so we can write like this

0.1==1.6

it's return FALSE because 10 is less than to 16. So option D is also correct.

So the ans is B any of these.

2. Assuming the variable x contains an integer value what will the result of the following statement be: if x<0 or x>=0.

A. True

B. False

C. Sometimes true and sometimes false

D. A "math domain" error will occur

ANSWER: A

Explanation:

Lets take example here we first take x=0 so its return TRUE

Now we take x=1 so its return TRUE

Now we take negative value which is x = -5 It's also return TRUE

Here you take whatever value its always return TRUE because here in if statement give OR so it's check if any one condition either x<0 or x>=0 is satisfied it Return TRUE.

so the answer of your question is option A