Correct Answer : A
Explanation :
Explanation :
Using formula, distance=3.75 km.
Correct Answered :
Wrong Answered :
A
3.75 km
B
3.5 km
C
2.85 km
D
4.25 km
Using formula, distance=3.75 km.
Correct Answered :
Wrong Answered :
A
30 kmph
B
28.8 kmph
C
32.6 kmph
D
26.7 kmph
Average speed=2xy/(x+y)=28.8 kmph.
Correct Answered :
Wrong Answered :
A
70 km/hr
B
75 km/hr
C
84 km/hr
D
87.5 km/hr
Second train speed=100 km/hr. First train speed=(7/8)*100=87.5. Correction needed.
Correct Answered :
Wrong Answered :