5-Day Free Trial
5-day free, full-access trial TTP
Available with Beat the GMAT members only code
MORE DETAILS
Speed, distance and time
This topic has expert replies
-
rajan_agarwal
- Junior | Next Rank: 30 Posts
- Posts: 20
- Joined: Sun Oct 25, 2015 3:23 am
Q. A train can travel 50% faster than car. Both start from point A at the same time and reach point B 75 kms away from A at the same time. On the way train lost 12.5 minutes while stopping at stations. The speed of the car is ?
-
MartyMurray
- Legendary Member
- Posts: 2131
- Joined: Mon Feb 03, 2014 9:26 am
- Location: https://martymurraycoaching.com/
- Thanked: 955 times
- Followed by:140 members
- GMAT Score:800
Speed of car = R
Speed of train = 1.5 R
Time car took = T
RT = 75
1.5R(T - 12.5) = 75 -> 1.5RT - 18.75R = 75
Multiply RT = 75 by 1.5 and subtract the other equation.
1.5RT = 107.5
1.5RT - 18.75R = 75
18.75R = 37.5
R = 2
Speed of train = 1.5 R
Time car took = T
RT = 75
1.5R(T - 12.5) = 75 -> 1.5RT - 18.75R = 75
Multiply RT = 75 by 1.5 and subtract the other equation.
1.5RT = 107.5
1.5RT - 18.75R = 75
18.75R = 37.5
R = 2
Marty Murray
Perfect Scoring Tutor With Over a Decade of Experience
MartyMurrayCoaching.com
Contact me at [email protected] for a free consultation.
Perfect Scoring Tutor With Over a Decade of Experience
MartyMurrayCoaching.com
Contact me at [email protected] for a free consultation.
