On a scale of map, 0.4 cm represents 5.3 km. If the distance between the points on the map is 64 cm, the actual distance between these points is: Pick
A) 9 km
B) 72.5 km
C) 190.75 km
D) 848 km
E) None of these
Explanation :   Let the actual distance be x km. Then,   More distance on the map, More is the actual distance (848 kmirect Proportion)   =&gt; 0.4 : 64 :: 5.3 : x   =&gt; 0.4x = 64 x 5.3   =&gt; x = 64 x 5.3 /0.4   =&gt; x = 848   Answer : 848 km
<result>D</result>
On a scale of map, 0.4 cm represents 5.3 km. If the distance between the points on the map is 64 cm, the actual distance between these points is: