
You have a piece of construction paper that measures cm by cm. You want to cut it into squares of equal size. What will be the dimensions of the largest possible square? How many squares will you have?

Important Questions on Numbers and Number Systems Civilizations and Human Interactions
At a train station, the blue line has a train leaving every minutes, the green line has a train leaving every minutes, and the red line every minutes. If the first train on each line leaves at the same time, how often will there be trains on all three lines departing the train station at the same time?






The Mayans of south-eastern Mexico and northern Central America had two calendars of different lengths. The Haab' is days and follows the solar year. There is also a sacred calendar called the Tzolk'in, which has a day cycle. The Calendar Round is made from the connection between the two calendars. The duration of the Calendar Round is when both calendars start again on the same day.
Calculate the duration of the Calendar Round.

The Mayans of south-eastern Mexico and northern Central America had two calendars of different lengths. The Haab' is days and follows the solar year. There is also a sacred calendar called the Tzolk'in, which has a day cycle. The Calendar Round is made from the connection between the two calendars. The duration of the Calendar Round is when both calendars start again on the same day.
Calculate the duration of the Calendar Round.
The Mayans believed that when a person lives for the duration of the Calendar Round, they will attain the special wisdom of an elder. At what age (in years) is this using the Haab' calendar?
