The distance between the gymnasium and the post office is about 5.5 cm, and the actual distance is 5.5÷ 1 300 = 1650 (cm) = 16.5 (m).
The distance between the post office and the library is about 2.5 cm, and the actual distance is 2.5÷ 1 300 =750 (cm) =7.5 (m).
Direction and travel time: Xiaoyingjia → Gymnasium 24 meters northeast for 6 minutes → Post Office southeast 16.5 4 minutes → Library southwest for 7.5 2 minutes (2)(24+ 16.5+7.5)÷(6+4+2).
=48÷ 12
= 4m/min
A: Xiaoying's average speed from home to the library is 4 meters per minute.