'Improve Your Skills
Solve the following problems.
1. Maine collects key chains. She has 48 foreign key chains and 112 bcat
key chains. She puts them in trays in such a way that the most number
of key chains are arranged and that each tray must have the same
number of each kind of key chain. There must be no leftover. How
many key chains must be placed on each tray?
2. Johanna is baking cakes to be put in a package for donation. Johanna
made 86 chocolate cakes, 24 yema cakes and 42 brownies cakes. She
wants that every package must have each kind of cake, and she must
give all of the cakes. What is the greatest number of this kind of
package that Johanna can make?
3. Shay and Genrev both do their marketing today. Shay does marketing
every 7 days and Genrev every 9 days. How many days must pass until
Shay and Genrev both do marketing on the same day again?​