Marco looks around at an assembly. He notices his younger sister to his right and his older brother 12 meters ahead of him. If Marco's brother and sister are 15 meters apart, how far apart are Marco and his younger sister?

Answer 1

Marco is 12 meters behind his brother, and his brother is 15 meters away from his sister. Thus, Marco is 15 + 12 = 27 meters away from his sister.