[20232] CSC126: Quick Exercise 2-2

Write a C++ declaration statement for each of the following questions:

Declare three variables as integer. Assign the first variable to 10.

Answer explanation

int num1 = 10, num2, num3;

OR

int num1 = 10;

int num2;

int num3;

Write a C++ declaration statement for each of the following questions:

Declare a constant variable named RATE as float and assign it to 0.125.

Answer explanation

const float RATE = 0.125;

Write a C++ declaration statement for each of the following questions:

Declare a floating-point variable named initial with value 100.

Answer explanation

float initial = 100;

Given the following declaration:

int w = 5, x = 7, y = 3, z = 12;

What is the result of the following expression?

w * x % y + z

• 14

• 17

• 21

• 22

What is the result of the following expression if data type of y is int?

y = 4 + (3 * (8 + 6) – 3) / 2

• 17.5

• 23.5

• 23

• 29

Evaluate the following expression:

x = 42 % 5 + 7 – (2 + 8) / 3;

Answer explanation

6

Evaluate the following expression:

y = 13.0 + 9 / 2.0

Answer explanation

17.5