Question

Grayson’s Groupcycles rents bikes with multiple seats for large groups of people.
They rent 7-seater, 13-seater, and 25-seater bikes.
What is the largest group size under 100 that cannot fit exactly on any combination of
bikes from Grayson’s Groupcycles?

Answer 1

The largest group size under 100 that cannot fit exactly on any combination of bikes from Grayson’s Groupcycles is 23. This is because 23 is not divisible by 7, 13, or 25 without having a remainder.