Problem 45244. How many Christmas presents under the tree?

For many families at Christmas, each family member gives 1 present to every other family member. The main exception is that children under the age of 16 do not contribute any presents. If there is only 1 child in the family, then that child is considered "spoilt" and receives 2 presents from each adult instead.
Given the size of a family (Nf) and the number of children under the age of 16 (Nc), find the number of presents under the Christmas tree!
Solve

Solution Stats

37.01% Correct | 62.99% Incorrect
Last Solution submitted on Aug 02, 2025

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers136

Suggested Problems

Problem Tags

christmas trivia

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!