GRE
Exam
Numerical Ability
Time Distance and Speed
two persons,rameo julie start at the same time from oklahoma and kansas travel towards each other at 45km/hr and 54km/hr respectively. when they meet , it is found that one of them has travelled 72km more than the other.the distance between the places(in kms)is?
Read Solution (Total 3)
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- Julie travels 54-45 = 9 km more than rameo in 1 hr.
If one of them has travelled 72km more than the other, time taken to travel total distance = 72/9 = 8 hrs
Relative speed = 45+54 = 99 km/hr
total distance between places = 99*8= 792 kms. - 12 years agoHelpfull: Yes(4) No(0)
- Ans:
For 1hr, Julie travels 54-45=9km more than romeo
to travel 72km more, time taken= 72/9=8hrs
In 8hrs,
Dist travelled by romeo=45*8=360km
Dist travelled by Julie=54*8=432km
Toatal distance between stations= 360+432= 792km - 12 years agoHelpfull: Yes(1) No(1)
- let at time t they meet
in tim t let rameo travel x km
so t=x/45
now at time t julie travel x+2 according to question
so t=(x+72)/54
on solving x=360
so julie will trvel=360+72=432
so total distance will be 360+432=792 km - 12 years agoHelpfull: Yes(0) No(0)
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