Answer:
Latitude: 35.751° - 38.93° N
Longitude: 100.45° - 104.28° E.
Explanation:
Longitudes deals with angular measure of distance in west or east of the prime meridian.
Latitude deals with the angular measure of distance in north or south from a earth's equator, its particular point is usually measured along the meridian.
A town located northwest of Beijing in China would have these range;
Latitude: 35.751° - 38.93° N
Longitude: 100.45° - 104.28° E.
Zhangye City seems to be popular in the Gansu province coordinates range given.
