[b]1. two trains 200 meteres and 150 meters are running on the parallel rails at this rate of 40 km/hr and 45 km/hr.in how much time will they cross each other if they are running on the same direction
Homework Equations
[b]3. speed=distance/time
train1 =200*40*5/18...
a grocesser purchased 80 kg of rice at the rate of 13.50 per kg and mixed it with 120 kg rice at the amount of 16 per kg.at what rate per kg should he sell the mixture to gain 16%
two trains 200 meters and 150 metrers are running on the parallel raila at this rate of 40km/hr and 45 km/hr.in how time will they cross each other if they are running in the same direction?