there are 3 trains named a b c which go from karachi to lahore and leave from karachi at same time. the distance between karachi and lahore is 1500 kms. when train a reached lahore train b was 150 km away from destination. when train b reached lahore train c was 150 km away from destination.
Answers
Though the question isn't complete as it is not mentioned what to evaluate, we'll compute the time taken by the three trains A, B and C.
For Train A:
Distance = 1500km.
Time = t
Speed = s km/h
t = 1500/s hours
For Train B:
Distance = (1500 - 150)km = 1350km
Time = t Speed = 1350/t km/h
Therefore, time taken for 1500 km will be
= (1500 / (1350/t)) = (1500t/1350)
or, 10t/9 hours
For Train C:
Distance = 1350km.
Time = 10t/9 hours
Speed = 1350/(10t/9) = 1215/t km/h
Time for 1500 km will be = (1500 / (1215/t)) = 1500t/1215 = 100t/81 hours.
Thus the conclusion stands:
Train B takes 10/9 times and Train C takes 100/81 times more time than that of Train A.
Answer:
Step-by-step explanation:
This is testing on relative distance.
The relative distance between a and b is :
= 150 km
The relative distance between b and c is :
= 150 km
The relative distance between a and c is :
150 + 150 = 300 km
C was 300 km away from Lahore when A reached Lahore