Rozi covered a definite distance at some speed. If she had moved 5 kmph faster, she would have taken 55 minutes less. If he had moved 4 kmph slower, she would have taken 55 minutes more. What is the distance in km?
Correct Option is: B speed=2V1V2/(V1-V2)
= 2*5*4/(5-4)
=40 km/hr
Distance= vt1 (1+v/v1)
=40* 55/60(1+40/5)
=40*11/12(1+8)
=40*11/12*9
=330 km
Therefore the distance is 330km