The distance between two places is 2000 km, correct to nearest thousand km. Then number of significant figures is

The distance between two places is 2000km, correct to nearest thousand km. Then number of significant figures is

The height of a person is 6.0 ft, correct to nearest foot (in integer) then number of significant figures is "________" .

Five thousand with three significant figures is written as:

Five thousands, with three significant figures, is written as

A car covers the first half of the distance between two places at 40 km/hr and another half at 60 km/hr. The average speed of the car is

If actual distance between two places A and B is 110 km and it is represented on a map by 25 mm. Then the scale used is ______.