Write a program that lets you know if you can have a key or not, based on your role at the school.
First ask for the user’s role at the school. They can be a student, administrator, or a teacher. (And remember that capitalization is important! ‘Student’ is not the same as ‘student’.)
Example 1: Administrator or Teacher
For example, if this was the input:
Are you an administrator, teacher, or student?: teacher
This should be the output:
Administrators and teachers get keys!
Example 2: Student
And if this was the input:
Are you an administrator, teacher, or student?: student
This should be the output:
Students do not get keys!
(Note: You should also be able to handle a situation where the user enters a value other than administrator, teacher or student and tell them they must be one of the three choices!)
Example 3: Other
If they input anything else:
Are you an administrator, teacher, or student?: secretary
This should be the output:
You can only be an administrator, teacher, or student!
Ответ:
Можно передать файл размером 25 Кбайт.
Объяснение:
Дано:
I₁ = 80 Кбайт = 80 * 1024 * 8 бит = 655360 бит
v₁ = 1024 бит/с
t₁ = t₂
v₂ = 320 бит/с
Найти: I₂
Решение:
I = v * t <=> t = I / v
I₁ / v₁ = I₂ / v₂
I₂ = v₂ * I₁ / v₁
I₂ = 320 бит/с * 655360 бит / 1024 бит/с = 204800 бит
I₂ = 204800 / 8 / 1024 Кбайт = 25 Кбайт
Ответ: I₂ = 25 Кбайт.