Sarita and Julie start walking from the same place in the opposite directions. If julie walks at a speed of `2(1)/(2)` km/hr and Sarita at a speed of 2 km/hr, in how much time will they be 18 km apart?

Options

A. 4 घंटे
B. 4.5 घंटे
C. 5.0 घंटे
D. 4.8 घंटे

Answer

A

Explanation

18km दूर होने में लगा समय = `18/(2 + 2 1/2)=18/4.5` = 4hr