Add hours on a 24-hour clock

JavaScript Beginner robot ages 11-13 From CS Unplugged

The problem

On a 24-hour clock, 22:00 plus 5 hours is 3:00. Write a function addHours24(start, hours) that gives back the new hour, from 0 to 23.

You will practice: remainder (%), clock arithmetic

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CC BY-SA 4.0

Adapted from a CS Unplugged programming challenge by the University of Canterbury Computer Science Education Research Group, licensed CC BY-SA 4.0.

Original challenge · License: CC BY-SA 4.0

Changes: Rewritten in our own words as a function with tests, hints and steps, in Python and JavaScript, by Open Cosmos. This version is also CC BY-SA 4.0.